Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “invalidate”

See all translations

invalidate

verb [T]
 
 
/ɪnˈvælɪdeɪt/
to officially stop a document, contract, etc. being legally or officially acceptable: If you do not go to an approved garage, you are likely to invalidate a warranty on a new car. →  Compare validate
invalidation noun [U]
Translations of “invalidate”
in Chinese (Traditional) 使無效, 使作廢, 證明(觀點、論點等)錯誤…
in Chinese (Simplified) 使无效, 使作废, 证明(观点、论点等)错误…
(Definition of invalidate from the Cambridge Business English Dictionary © Cambridge University Press)
What is the pronunciation of invalidate?
Add Cambridge dictionaries to your browser to your website

Definitions of “invalidate” in other dictionaries

Word of the Day

baby

a very young child, especially one that has not yet begun to walk or talk

Word of the Day

The way we move (Verbs for walking and running)

by Kate Woodford,
March 25, 2015
​​​ This week we’re looking at interesting ways to describe the way that people move. Most of the verbs that we’ll be considering describe how fast or slow people move. Others describe the attitude or state of mind of the person walking or running. Some describe both. Starting with verbs for walking slowly,

Read More 

stackin’ p

March 30, 2015
idiom slang earning a lot of money ‘That’s a very generous present.”Yeah, well, she’s stackin’ p, innit?’

Read More