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

See Examples For:

not to mention

Even if you have a model as old as the iPhone 11, there’s plenty of practical improvements for you in iOS 27, not to mention performance boosters, such as up to 80% faster AirDrop transfers.

From The Wall Street Journal ● Sep. 14, 2026

That’s not to mention the gorgeous puppetry work done by another set of performers as the play reveals a series of detailed circus animals.

From Los Angeles Times ● Sep. 14, 2026

But that wasn’t the case, and those exposed are now at elevated risks of cardiovascular and respiratory diseases, not to mention cancer.

From Salon ● Sep. 12, 2026

That led to 20 percent fewer vessels and a 17 percent drop in tonnage, not to mention longer lines of ships queuing up.

From Barron's ● Sep. 3, 2026

It means having to learn a foreign language, not to mention pre-algebra, a class I’m destined to fail.

From "A Mango-Shaped Space" by Wendy Mass