not to mention

Idioms  

1. Also, not to speak of; to say nothing of. In addition to, besides what's already been said. For example, I don't think the voters will want that big program, not to mention the cost, or Dave teaches trumpet and trombone, not to speak of other brass instruments, or Their house is worth at least a million, to say nothing of their other assets.

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Example Sentences

Not to mention its multimillion dollar deals with the US and other powerful governments.

From BBC • Apr. 24, 2026

Not to mention Parmo, a fat-laden breaded chicken dish that is a local specialty.

From The Wall Street Journal • Mar. 25, 2026

Not to mention Europe’s longstanding military dependence on Washington.

From Barron's • Mar. 7, 2026

Not to mention that gas still isn’t $1.99 a gallon anywhere in the United States, and why would our allies care if it were?

From Salon • Jan. 23, 2026

“Nessy, your school is right up the hill. Not to mention you’re about two hours late at this point. Where do you think you’re going?”

From "Like Vanessa" by Tami Charles