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English Lexicon

Not to mention

/nɒt tuː ˈmɛn.ʃən/
conjunctionidiomatic phraseCEFR B2 (Upper)Top #1450 frequency
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Comprehensive Definitions & Senses

2 senses
As conjunction
  1. 1

    Used to introduce an additional point or extra piece of information that reinforces what has already been said.

    "The hotel was luxurious, not to mention extremely affordable."
As idiomatic phrase
  1. 1

    To say nothing of; let alone.

    "He has three cars, not to mention a private yacht."
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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the verb 'mention' (from Latin 'mentionare', related to 'mens' meaning mind), combined with the negative particle 'not' and infinitive marker 'to'. It emerged in early Modern English as a participial phrase used to introduce an additional, amplifying point without detailing it fully.

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