Dictionary.com
Thesaurus.com
Synonyms

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]


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Without it, it’s hard to enjoy a moment, let alone a day, month, or year.

From Slate • Mar. 29, 2026

"The cramps around my womb and my belly were just horrible. Even the back pain, it's just hard standing up straight, let alone sprinting or running," she said.

From BBC • Mar. 26, 2026

The idea of artificial intelligence, let alone a personal computer, was a fantasy at best.

From Salon • Mar. 26, 2026

It is worth repeating that the past behavior of markets does not show what markets will do in the future, let alone what markets “do” in some kind of generalized eternal present.

From MarketWatch • Mar. 26, 2026

He’d reached Stanford Hospital without ever taking a class in finance or accounting, let alone working for any Wall Street firm.

From "The Big Short" by Michael Lewis