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 golf
  • Sports Illus.
  • how many ever see an Ambassador or Minister, let alone a President
  • —Robert Lacville

Examples of let alone in a Sentence

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

First Known Use of let alone

1765

let alone Synonyms

Synonyms
much less, never mind, still less, not to mention

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