Dictionary
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>
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First Known Use of LET ALONE
1765
Related to LET ALONE
- Synonyms
- much less, never mind, still less, not to mention
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