alter - definition in the American English Dictionary - Cambridge Dictionaries Online

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English definition of “alter”

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alter

verb [I/T]  us   /ˈɔl·tər/
to change a characteristic, often slightly, or to cause this to happen: [T] The coat was too long, so I took it back to the store to have it altered.
alterable
adjective  /ˈɔl·tər·ə·bəl/
Some things in life are not alterable.
alteration
noun [C/U]  us   /ˌɔl·təˈreɪ·ʃən/
[C] I had to make some alterations in my research paper.
(Definition of alter from the Cambridge Academic Content Dictionary © Cambridge University Press)
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