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 golf.Sports 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.
However, making it to Daytona, let alone winning a championship, may remain well out of Courteney’s grasp. Aramide Tinubu, Variety, 7 Nov. 2025 Aetna still doesn’t have the documents needed to figure out who to depose, let alone digest all the evidence and take depositions. Teri Sforza, Oc Register, 6 Nov. 2025 Nothing indicated that the removal credits Microsoft was snapping up were enough to cancel out these emissions, let alone surmount them. Literary Hub, 5 Nov. 2025 But that carousel is tough enough for those who’ve been in his system for years, let alone a rookie on the roster bubble. Luca Evans, Denver Post, 5 Nov. 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 11 Nov. 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
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!