let alone

1. See leave someone alone .

2. Not to mention, as in We have no room for another house guest, let alone an entire family . [c. 1800]

Example Sentences

“Most people never write any hits, let alone songs that change popular music, which certainly defines him as a player and a writer,” says Sowders.

Read more on Los Angeles Times

Meredith is long-winded and short-sighted, unable to take a hint, let alone relax.

Read more on Salon

This is the best evidence yet that has been found for a planet with such a funny-looking orbit around a pair of stars, let alone a pair of brown dwarfs!

Read more on Space Scoop

After that heartbreak, another 21 years would pass before the Mariners would even qualify for the playoffs again, let alone advance to the ALCS.

Read more on The Wall Street Journal

“We tell young people in different countries what is really happening on the Black continent. Before playing, many players didn’t know the names of many African countries, let alone the Sahel region.”

Read more on The Wall Street Journal