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

As captured here, its members do seem quite rational, not to mention affable and easygoing.

From The Wall Street Journal

The storms that pummeled Southern California this week brought dramatic wind gusts, bursts of rain and lightning that set trees on fire, not to mention heavy snow.

From Los Angeles Times

That now makes it more expensive than Microsoft, Amazon, Meta and many other tech highfliers, not to mention fellow retailers, on that widely watched measure of cash flow.

From The Wall Street Journal

It can make an unassuming desk worker appear daring and athletic—not to mention comfortable in elite social circles.

From The Wall Street Journal

And at the neighborhood party, Camille told me not to mention my postcard to the FBI.

From Literature