Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “alter”

alter

verb (CHANGE)    /ˈɒl.tər/ US  /ˈɑːl.t̬ɚ/
B2 [I or T] to change something, usually slightly , or to cause the characteristics of something to change : We've had to alter some of our plans . Although the cost of making phone calls is going up, the charge for connecting to the internet will not alter. Giving up our car has radically altered our lifestyle .ChangingAdapting and modifying Adapting and attuning to somethingChanging frequently [T] to change the size of clothes so that they fit better : I took the coat back to the shop to have it altered.ChangingAdapting and modifying Adapting and attuning to somethingChanging frequently
(Definition of alter verb (CHANGE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of alter

Browse related topics

You are looking at an entry to do with Changing, but you might be interested in these topics from the Changing and not changing topic area:

Definitions of “alter” in other dictionaries

Word of the Day

friendship

a situation in which two people are friends

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More