let alone

conjunction

: to say nothing of : not to mention
used especially to emphasize the improbability of a contrasting example
he would never walk again let alone play golfSports Illus.
how many ever see an Ambassador or Minister, let alone a PresidentRobert Lacville

Examples of let alone in a Sentence

I don't have enough money for a new car, let alone a luxury sedan.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Secure identity management is of paramount importance for any health system let alone NYU’s system, which sees nearly 11.3 million outpatient visits every year. Dr. Sai Balasubramanian, M.d., J.d., Forbes, 7 Mar. 2025 Closing this school — let alone any school — has proven to be quite the task for Broward County Public Schools. Amanda Rosa, Miami Herald, 6 Mar. 2025 Those are impressive numbers for an entire year—let alone just a few weeks. Frank Cappelleri, CNBC, 6 Mar. 2025 In places like Altadena, the brunt was endured by low-income households, many inhabited by renters rather than owners—not the sort of folk who could pay for ample insurance coverage, let alone for private detectives. Anthony Lane, The New Yorker, 3 Mar. 2025 See All Example Sentences for let alone

Word History

First Known Use

1765, in the meaning defined above

Time Traveler
The first known use of let alone was in 1765

Browse Nearby Words

Cite this Entry

“Let alone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/let%20alone. Accessed 10 Mar. 2025.

Kids Definition

let alone

conjunction
: to say nothing of : not to mention
lacked the courage, let alone the know-how
Last Updated: - Updated example sentences
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