put on airs
Verb
Meaning
act like the master of
Source: WordNetSynonyms
Antonyms
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Examples
I'm me. I can't put on airs. I'm not a phony. I know the way I am hurts me more times than it helps. But somehow it's all tied up with my integrity, and my integrity is the last thing I'm going to let you take from me.
He is lording it over the students
Personally, I like my alcoholic beverages in wine form, which I prefer to drink out of mugs—because why put on airs?
To do so is to put on airs, as though you were inviting the reader to join you in a select society of those who know better.”