Synonyms of 'butt in'
▷ See butt
1 interfereDictionary, meddle, intrude
Nobody asked you to butt in.
2 interruptDictionary, cut in, break in
Could I just butt in here and say something?
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Thesaurus for butt in from the Collins English Thesaurus
If you say that someone is butting in , you are criticizing the fact that they are joining in a conversation or activity without being asked to.