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English definition of “alter”

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alter

verb [I/T]  /ˈɔl·tər/ us  
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]  /ˌɔl·təˈreɪ·ʃən/ us  
[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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