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.

---

Example Sentences

Egypt, though not directly involved in the war, has contended with its repercussions on energy, fertilizer and food prices, not to mention disruptions to shipping income Cairo receives through the Suez Canal.

From Los Angeles Times

But that agenda is also profoundly narcissistic and poorly conceived, not to mention managed by shameless lickspittles whose only authentic job skill lies in praising the boss.

From Salon

That is quite the takeaway, not to mention depressingly way off base from the point.

From Salon

"Cultures are different, not to mention the language barrier," the mayor said, urging "mutual support and consideration".

From Barron's

Automation can be a convenient cover to reverse postpandemic overhiring—not to mention an attempt to signal that a business is on the cutting edge.

From The Wall Street Journal