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English definition of “alter”


verb [I/T]    /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  /ˈɔl·tər·ə·bəl/ adjective Some things in life are not alterable. alteration    /ˌɔl·təˈreɪ·ʃən/ noun [C/U] [C] I had to make some alterations in my research paper.
(Definition of alter verb from the Cambridge Academic Content Dictionary © Cambridge University Press)
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