guarantee

A firm promise that something will happen or be done.

• We need a written guarantee.
• They gave a guarantee that the goods would arrive on time.
• The agreement includes guarantees of fair treatment.

How to use it: guarantee that… (We need a guarantee that the work will be finished.); guarantee of something (They asked for a guarantee of payment.)

Similar words: assurance, promise, pledge

Common phrases: give a guarantee, written guarantee, guarantee of something

A promise to repair or replace a product, or return your money, if it does not work properly.

• The fridge is still under guarantee.
• Your purchase comes with a two-year guarantee.
• They replaced the phone because its guarantee had not expired.

How to use it: guarantee on something (The shop offers a guarantee on all its washing machines.)

Similar words: warranty

Common phrases: under guarantee, two-year guarantee, guarantee on something, product guarantee

Something that makes a particular result certain.

• Money is no guarantee of happiness.
• A degree is not a guarantee of a good job.
• Her careful preparation was our best guarantee of success.

How to use it: guarantee of something (A high price is no guarantee of quality.)

Similar words: assurance

Common phrases: guarantee of success, no guarantee, guarantee of something

To promise firmly that something will happen or be done.

• I guarantee you will enjoy it.
• The company guarantees delivery within three days.
• The law guarantees everyone the right to a fair trial.

How to use it: guarantee that… (I guarantee that your money will be returned.); guarantee someone something (The agreement guarantees workers a fair wage.)

Similar words: promise, assure, pledge

Common phrases: guarantee that something, guarantee someone something, guarantee delivery

To make sure that something will happen or have a particular result.

• These conditions guarantee a good crop.
• A strong team does not always guarantee victory.
• Careful planning helped guarantee the project’s success.

Similar words: ensure, assure, secure

Common phrases: guarantee success, guarantee a result, guarantee something

To promise to repair or replace a product, or return the money, if it develops a fault.

• We guarantee all our products.
• The manufacturer guarantees the battery for two years.
• These boots are guaranteed against faults in the materials.

How to use it: guarantee something against something (We guarantee this product against manufacturing defects.); guarantee something for a period (The company guarantees the motor for five years.)

Similar words: warrant

Common phrases: guarantee a product, guarantee against defects