as in not to mention
to say nothing of
I don't have enough money for a new car, let alone a luxury sedan
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Recent Examples of let alone
There’s no evidence that atrazine could have the same effect in humans, let alone impact gender or sexuality.
—
Aria Bendix, NBC News, 15 Nov. 2024
For apps whose express purpose is to help people find friends, my matches seemed overwhelmingly uninterested in chatting, let alone meeting up.
—Allie Volpe, Vox, 14 Nov. 2024
Having any kind of conversation on delicate or divisive issues, let alone a civil and productive one, can be a huge challenge for many of us.
—Andrea Kane, CNN, 5 Nov. 2024
The military and the civil service are unlikely to take any provocative action that would trigger, let alone justify, such a purge.
—Peter D. Feaver, Foreign Affairs, 6 Nov. 2024
See all Example Sentences for let alone 
Aria Bendix, NBC News, 15 Nov. 2024
For apps whose express purpose is to help people find friends, my matches seemed overwhelmingly uninterested in chatting, let alone meeting up.
—Allie Volpe, Vox, 14 Nov. 2024
Having any kind of conversation on delicate or divisive issues, let alone a civil and productive one, can be a huge challenge for many of us.
—Andrea Kane, CNN, 5 Nov. 2024
The military and the civil service are unlikely to take any provocative action that would trigger, let alone justify, such a purge.
—Peter D. Feaver, Foreign Affairs, 6 Nov. 2024
See all Example Sentences for let alone
Thesaurus Entries Near let alone
Cite this Entry
“Let alone.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/let%20alone. Accessed 30 Nov. 2024.
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