The meaning of Undo

verb

Repeal or do away with (a law, right, or formal agreement).

Usage examples:

A proposal to abrogate temporarily the right to strike

verb

To officially end a law, agreement, or custom

Usage examples:

The opposition party pledged to abrogate the law if they won the election.

verb

Declare invalid (an official agreement, decision, or result).

Usage examples:

The decision was annulled by the courts

verb

To announce officially a law, marriage, or other contract as no longer existing

Usage examples:

The contract was finally annulled., you will need a court hearing to get an annulment.

verb

To state officially that something such as a law, agreement, or marriage no longer exists

Usage examples:

The court did not annul the sentences but ruled they should be reviewed., we will seek an early hea…

verb

Decide or announce that (a planned event) will not take place.

Usage examples:

He was forced to cancel his visit

noun

A mark made on a postage stamp to show that it has been used.

Usage examples:

A stamp franked and with an adhesive cancel

verb

To decide that something arranged in advance will not happen, or to state that you do not wish to receive something

Usage examples:

[ i ] we were supposed to meet for dinner but elise had to cancel at the last minute., [ t ] he col…

verb

Revoke or cancel (an order).

Usage examples:

An order to arrest the strike leaders had been countermanded

noun

An order revoking a previous one.

Usage examples:

I forthwith mounted, and went off, lest i should receive a countermand

verb

To change an order that has already been given, especially by giving a new order

Usage examples:

Oral approval will form part of the agreement unless it is countermanded by the client within two w…

verb

Cause severe and disabling damage to; deprive of the ability to function normally.

Usage examples:

Developing countries are crippled by their debts

noun

A person with a severe limitation of a specified kind.

Usage examples:

An emotional cripple

verb

Deprive of the use of a limb, especially a leg

verb

Compress or squeeze forcefully so as to break, damage, or distort in shape.

Usage examples:

The front of his car was crushed in the collision

noun

A crowd of people pressed closely together.

Usage examples:

A number of youngsters fainted in the crush

verb

To press something very hard so that it is broken or its shape is destroyed

Usage examples:

The package got crushed in the mail., her car was crushed by a falling tree., i was crushed because…

verb

End the existence of (something) by damaging or attacking it.

Usage examples:

The room had been destroyed by fire

verb

To damage something, esp. in a violent way, so that it can no longer be used or no longer exists

Usage examples:

You can use a shredder to destroy old bank statements., losing his job seemed to completely destroy…

verb

Disengage (something or part of something) and remove it.

Usage examples:

He detached the front lamp from its bracket

verb

To separate or remove something from something else that it is connected to

Usage examples:

Detach the lower half of the form and return it to the above address.

verb

To separate or remove something from something else that it is joined to

Usage examples:

Detach sth from sth detach the reply slip from this letter and return it to the above address.

verb

Destroy or ruin.

Usage examples:

The city was devastated by a huge earthquake

verb

To cause great damage or suffering to something or someone, or to violently destroy a place

Usage examples:

Waves of corporate downsizing have devastated employee morale., i was so devastated i was crying co…

prefix

Twice; two-; double.

Usage examples:

Dichromatic

prefix

Variant spelling of dis- shortened before l, m, n, r, s (followed by a consonant), and v ; also often shortened before g, and sometimes before j.

prefix

Variant spelling of dia- shortened before a vowel (as in dielectric ).

verb

Refuse to declare valid.

Usage examples:

He was offside and the goal was disallowed

verb

To state officially that something cannot be accepted or allowed, because it has not been done in the correct way

Usage examples:

The monopolies legislation disallows mergers of major companies within one industry., disallow clai…

verb

Free (something or someone) from something that they are entangled with.

Usage examples:

‘i must go,’ she said, disentangling her fingers from gabriel's

verb

To separate things that have become joined or confused

Usage examples:

It’s hard to disentangle the truth from all her lies.

verb

Free (someone or something) from a constraint or difficulty.

Usage examples:

He was trying to extricate himself from official duties

verb

Release from entanglement or difficulty

abbreviation

Feminine.

symbol

(in units of measurement) femto- (10−15).

Usage examples:

The detection limits of the enzymatic activity tests are between 10 and 500 fg per test

noun

The sixth letter of the alphabet.

Usage examples:

They are guaranteed f's if they goof around

noun

Physical injury, especially that which is deliberately inflicted.

Usage examples:

I didn't mean to cause him any harm

verb

Physically injure.

Usage examples:

The villains didn't harm him

noun

Physical or other injury or damage

Usage examples:

Missing a meal once in a while won’t do you any harm., fortunately, she didn’t come to any harm whe…

verb

Weaken or damage (something, especially a faculty or function).

Usage examples:

A noisy job could permanently impair their hearing

verb

To damage or weaken something so that it is less effective

Usage examples:

Lack of sleep impaired her ability to think clearly., [ c ] the law bans discrimination against any…

verb

Make or prove (an argument, statement, or theory) unsound or erroneous.

Usage examples:

His second is that finding unpleasant - even horrible - application of a scientific theory or philo…

verb

To make something not true, or to make something unacceptable

Usage examples:

A few minor factual errors should not invalidate the theory.

verb

To officially stop a document, contract, etc. being legally or officially acceptable

Usage examples:

If you do not go to an approved garage, you are likely to invalidate a warranty on a new car., the …

adjective

Not firmly or tightly fixed in place; detached or able to be detached.

Usage examples:

A loose tooth

noun

Loose play.

Usage examples:

He was in powerful form in the loose

verb

Set free; release.

Usage examples:

The hounds have been loosed

verb

Make (something tied, fastened, or fixed in place) less tight or firm.

Usage examples:

Loosen your collar and tie

verb

To become or make something less firmly fixed

Usage examples:

[ i ] the screws holding the light fixture have loosened, and it’s dangling from the ceiling., [ t …

verb

Impair the quality or appearance of; spoil.

Usage examples:

Violence marred a number of new year celebrations

abbreviation

March.

verb

To spoil something, making it less good or less enjoyable

Usage examples:

Water will mar the finish of polished wood.

verb

Make ineffective; nullify.

Usage examples:

Alcohol negates the effects of the drug

verb

To show something to be wrong or to be the opposite of what was thought, or to cause something to have no effect

Usage examples:

The increase in sales was negated by the rising cost of materials.

verb

Make legally null and void; invalidate.

Usage examples:

It is at the discretion of the court to nullify the decision

verb

To cause an agreement or result to be no longer effective or consider it as not existing

Usage examples:

The referee nullified the goal.

verb

To make a legal agreement or decision no longer have any legal force

Usage examples:

The airline wants to nullify employees' contracts if no settlement is reached., a suit has been fil…

verb

Reject or disallow by exercising one's superior authority.

Usage examples:

Chief judge moran overruled the government's objections

verb

Tip (something) over so that it is on its side or upside down.

Usage examples:

The crowd proceeded to overturn cars and set them on fire

noun

An act of overturning something.

Usage examples:

For the most part the only people who actually bothered to look at the registration rolls and allow…

verb

To turn over, or to cause something to turn over

Usage examples:

[ i ] the truck overturned, spilling its cargo., [ t ] the court of appeals overturned her convicti…

verb

Reject as invalid, especially by legal procedure.

Usage examples:

His conviction was quashed on appeal

verb

To stop or block something from happening

Usage examples:

The secretary of defense tried to quash speculation that he was planning to resign following the di…

verb

To state officially that something, especially an earlier official decision, is no longer to be accepted

Usage examples:

Quash a conviction/decision/order his conviction was quashed in march after a lengthy legal battle.…

verb

Allow or enable to escape from confinement; set free.

Usage examples:

An official confirmed the prisoners would be released

noun

The action or process of releasing or being released.

Usage examples:

A campaign by the prisoner's mother resulted in his release

verb

Revoke or annul (a law or act of parliament).

Usage examples:

The legislation was repealed five months later

noun

The action of revoking or annulling a law or act of parliament.

Usage examples:

The house voted in favour of repeal

verb

(of a government) to make a law no longer a law

Usage examples:

Legislators repealed the sales tax., senators called for the law’s repeal.

verb

Revoke, cancel, or repeal (a law, order, or agreement).

Usage examples:

The government eventually rescinded the directive

verb

To make a law, order, or decision no longer have any legal effect

Usage examples:

The vote rescinds zoning decisions made earlier in the decade.

verb

To officially end a law, take back a decision, or say that an agreement no longer exists

Usage examples:

Rescind a law/contract/decision we urge the committee to rescind its decision.

verb

Draw back.

Usage examples:

She retracted her hand as if she'd been burnt

verb

To say publicly that you will not do something you had said you would do, or to admit that something that you had said was true is false

Usage examples:

[ t ] she had to retract statements in published articles., [ t ] the pilot retracted the landing g…

verb

To take back an offer or statement, etc. or admit that a statement was false

Usage examples:

Retract a statement/comment/decision a political uproar followed, and he quickly retracted his comm…

verb

Move backwards.

Usage examples:

The lorry reversed into the back of a bus

adjective

Going in or turned towards the direction opposite to that previously stated.

Usage examples:

The trend appears to be going in the reverse direction

noun

A complete change of direction or action.

Usage examples:

The gall actuates a reverse of photosynthesis

verb

Officially cancel (a decree, decision, or promise).

Usage examples:

The men appealed and the sentence was revoked

verb

To say officially that an agreement, permission, or law is no longer effective

Usage examples:

Licenses can be revoked for up to five years.

verb

To state officially that an agreement, right, or legal document is no longer effective

Usage examples:

The commission may revoke the registration of anyone convicted of a felony in the past 10 years., r…

noun

The physical destruction or disintegration of something or the state of disintegrating or being destroyed.

Usage examples:

A large white house falling into gentle ruin

verb

Reduce (a building or place) to a state of decay, collapse, or disintegration.

Usage examples:

The castle was ruined when dynamite was used to demolish one of the corner towers

verb

To spoil or destroy something

Usage examples:

It would be a shame to ruin such a beautiful place., that guy isn’t going to ruin my life.

verb

Deliberately destroy, damage, or obstruct (something), especially for political or military advantage.

Usage examples:

Power lines from south africa were sabotaged by rebel forces

noun

The action of sabotaging something.

Usage examples:

A coordinated campaign of sabotage

verb

To damage or destroy equipment, weapons, or buildings in order to prevent the success of an enemy or competitor

Usage examples:

The rebels had tried to sabotage the oil pipeline.

verb

Decisively put an end to.

Usage examples:

A spokesman has scotched the rumours

noun

A wedge placed under a wheel or other rolling object to prevent it moving or slipping.

noun

A cut or score in skin or another surface.

Usage examples:

A scotch in his face

noun

A hole in a ship's side to carry water overboard from the deck.

Usage examples:

Nylon panels on the sides of the geckos eject water like scuppers on a tramp steamer - hop out of t…

verb

Sink (a ship or its crew) deliberately.

Usage examples:

The ship was scuppered and seriously damaged

verb

To sink your own ship on purpose

Usage examples:

Arriving late for the interview scuppered my chances of getting the job.

verb

Diminish or destroy the value or quality of.

Usage examples:

I wouldn't want to spoil your fun

noun

Goods stolen or taken forcibly from a person or place.

Usage examples:

The looters carried their spoils away

verb

To destroy or damage something, or to become destroyed or damaged

Usage examples:

[ t ] the oil spill spoiled five miles of coastline., [ t ] don’t tell me how it ends, you’ll spoil…

verb

Make a soft sucking sound such as that made by treading heavily through mud.

Usage examples:

Bedraggled guests squelched across the lawn to seek shelter

noun

A soft sucking sound made when pressure is applied to liquid or mud.

Usage examples:

The squelch of their feet

verb

To stop something quickly and completely

Usage examples:

One professor claimed that the university tried to squelch his criticisms.

verb

Undermine the power and authority of (an established system or institution).

Usage examples:

The case involved an attempt to subvert the rule of law

verb

To try to destroy or damage something, especially an established political system

Usage examples:

The rebel army is attempting to subvert the government., our best intentions are sometimes subverte…

verb

Overbalance or cause to overbalance and fall.

Usage examples:

She toppled over when i touched her

verb

To lean forward and fall

Usage examples:

[ t ] a large tree was toppled by the wind., [ t ] the government toppled after several large publi…

verb

To remove a person or organization from a position of power

Usage examples:

This was a secret bid to topple the chairman and take his job., their aim was to topple the superma…

verb

Release from bonds or restraints.

Usage examples:

The guards unbound the prisoners

verb

To release someone or something from a rope, string, etc. that has been tying him, her, or it up

Usage examples:

My hands were unbound and my blindfold removed.

verb

Open (a door or window) by drawing back a bolt.

Usage examples:

He ran down the stairs and unbolted the heavy wooden door

verb

Remove the bridle from (a horse).

Usage examples:

He unbridled his mare and let her roam

verb

Unfasten the buttons of (a garment).

Usage examples:

Unbuttoning her jacket she sat down at the table

verb

To unfasten the buttons on something such as a shirt

Usage examples:

He unbuttoned his jacket and sat back comfortably in his chair., his shirt was unbuttoned to show o…

verb

Deselect (an option on an electronic interface) by pressing a button on a mouse or screen.

Usage examples:

County workers running the program forgot to unclick a box that loaded all the early voting results

verb

Release or unfasten (something) with a clicking sound.

Usage examples:

I put my hand down to unclick my seatbelt but realized i forgot to buckle it in the first place

verb

Disconnect (something, especially a railway vehicle that has been coupled to another).

Usage examples:

They uncoupled the engine

verb

Erode the base or foundation of (a rock formation).

Usage examples:

The flow of water had undermined pillars supporting the roof

verb

To gradually weaken or destroy someone or something

Usage examples:

The incompetence and arrogance of the city’s administration have undermined public confidence in go…

verb

Open the fastening of; undo (something).

Usage examples:

Allie stands before the mirror unfastening her earrings

verb

To make looser or take apart something that fastens or is fastened

Usage examples:

[ t ] cal loosened his tie and unfastened his collar.

verb

Release from a restraining or inhibiting force.

Usage examples:

His imagination is unfettered by the laws of logic

verb

Unhook or unfasten (something tethered to or caught on something else).

Usage examples:

He unhitched the side of the trailer

verb

Unfasten or detach (something that is held or caught by a hook).

Usage examples:

She unhooked a towelling robe from behind the door

verb

Undo the laces of (a shoe or garment).

Usage examples:

She unlaced her boots

verb

To unfasten something that is tied with laces, for example shoes

Usage examples:

She began to unlace her boots.

verb

Detach; separate.

Usage examples:

She unlinked her arm from shelley's

verb

Undo the lock of (something), typically with a key.

Usage examples:

He unlocked the door to his room

verb

To open a lock using a key, an electronic device, or a series of numbers or letters

Usage examples:

Could you unlock the door for me?

verb

To make something available to be used in order to increase its value or to make a profit from it

Usage examples:

If we do not unlock the value of this business, someone else will., the demerger will unlock shareh…

verb

To free by removing or releasing manacles or handcuffs.

verb

Release from shackles, chains, or other physical restraints.

Usage examples:

They were unshackled and released

verb

Undo or unfasten (something that is tied or tied up).

Usage examples:

She knelt to untie her laces

verb

To unfasten a knot or something tied

Usage examples:

I had to help her untie her shoelaces.

noun

A constitutional right to reject a decision or proposal made by a lawmaking body.

Usage examples:

Neither state was given a veto over amendments to the act

verb

Exercise a veto against (a decision or proposal).

Usage examples:

The president vetoed the bill

noun

The power to refuse to allow something to be done, or such a refusal

Usage examples:

[ c ] the president has promised a veto if congress passes that bill., [ u ] the mayor will have no…