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

Presidents, 12 Supreme Court Justices and a couple dozen Nobel laureates, not to mention three current MLB GMs.

From The Wall Street Journal ● Sep. 15, 2026

The extreme heat is causing dwindling snowpack in the state, with far-reaching impacts on agriculture and water supply, not to mention the multi-billion dollar ski industry.

From Salon ● Sep. 5, 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

A captivating, welcoming and family-friendly space, with some jaw-dropping views, a cafe and a gorgeous rooftop fine-dining restaurant, not to mention an 11-acre garden, dotted with statuary and fountains.

From Los Angeles Times ● Sep. 2, 2026

I’m pretty sure I was pregnant at Christmastime, but now I’m sure I’m not, so there must have been a loss in there, but it’s easier not to mention it to Anatole.

From "The Poisonwood Bible" by Barbara Kingsolver