let alone

Idioms  

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]

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Example Sentences

See Examples For:

let alone

Oklo has deals to provide more than 14 gigawatts of power for Meta and others, but has yet to secure key permits, let alone build a power plant.

From The Wall Street Journal ● Jul. 23, 2026

But none of that guarantees he'll lead Labour to recover, let alone the enormous task of helping a grumpy country thrive.

From BBC ● Jul. 18, 2026

Oseman has learned to tune out that online chatter, accepting that she cannot please everyone — let alone represent the entire spectrum of the young queer experience.

From Los Angeles Times ● Jul. 17, 2026

Would he ever set foot in a classroom again, let alone achieve his dream of becoming a doctor?

From Los Angeles Times ● Jul. 10, 2026

Nobody in his circle of friends or family knew the truth about his double role—not even his wife, Leila, let alone his two daughters.

From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau