let alone

conjunction

Definition of let alone

: 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 President— Robert Lacville

Keep scrolling for more

Examples of let alone in a Sentence

I don't have enough money for a new car, let alone a luxury sedan.

First Known Use of let alone

1765, in the meaning defined above

Keep scrolling for more

Learn More about let alone

Statistics for let alone

Look-up Popularity

Time Traveler for let alone

The first known use of let alone was in 1765

See more words from the same year

More from Merriam-Webster on let alone

Thesaurus: All synonyms and antonyms for let alone

Comments on let alone

What made you want to look up let alone? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

having no equal

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Latin Quiz

  • roman forum
  • Which of the following months comes from a Latin word for “ten”?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

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