English Lexicon

Certain

/ˈsɜːr.tən/
adjectivepronounCEFR B1 (Intermediate)Top #250 frequency
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Comprehensive Definitions & Senses

2 senses
As adjective
  1. 1

    Known for sure; established beyond doubt.

    "I am certain that I left my keys on the kitchen counter."
  2. 2

    Particular but not explicitly named or stated.

    "Certain individuals may have different opinions on the matter."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the Old French word 'certain', stemming from the Late Latin 'certanus', a variant of Latin 'certus' meaning 'resolved, fixed, or sure'. It entered the English language during the Middle English period following the Norman Conquest, gradually replacing native Germanic terms for conviction.

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