none of (one's) business

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Also found in: Acronyms.

none of (one's) business

Something that is of no concern to another. It's really none of his business what I do with the money I earn.
See also: business, none, of

none of someone's business

not of someone's concern. (A gentle rebuke.) Q: When are you going to leave for home? A: None of your business. How I managed to afford all this is none of your business.
See also: business, none, of

(It's) none of your business!

It is nothing that you need to know. It is none of your concern. (Not very polite.) Alice: How much does a little diamond like that cost? Mary: None of your business! John: Do you want to go out with me Friday night? Mary: Sorry, I don't think so. John: Well, what are you doing then? Mary: None of your business!
See also: none, of

none of one's business

Not one's concern, as in How much I earn is none of your business. This expression employs business in the sense of "one's affairs," a usage dating from about 1600. (Also see mind one's own business.) A slangy, jocular variant from about 1930 is none of one's beeswax. The related verb phrase have no business is used to indicate that one should not meddle or interfere, as in He has no business discussing the will with outsiders.
See also: business, none, of
References in periodicals archive ?
No It's really none of my business if another student cheats.
This I generally believe to be a matter for the Scots and none of my business.
We don't say it's too bad my brother or sister got a raw deal at the factory, but it's none of my business.
I was shocked and angry but they were swearing, trying to get violent and telling me it was none of my business.
I DON'T want to be accused of poking my nose in things that are none of my business but - Lebanon?
I know it's none of my business, but I'd also like to extend my compliments to his wife for standing by him through what must have been an incredibly tough time.