Definition of "one" [one]

  • Being a single entity, unit, object, or living being. (adjective)
  • Characterized by unity; undivided: They spoke with one voice. (adjective)
  • Of the same kind or quality: two animals of one species. (adjective)
  • Forming a single entity of two or more components: three chemicals combining into one solution. (adjective)
  • Being a single member or element of a group, category, or kind: I'm just one player on the team. (adjective)
  • Single; lone; not two or more (determiner)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

  • (as pronoun) (determiner)
  • (in combination) (determiner)
  • Distinct from all others; only; unique (determiner)
  • A specified (person, item, etc) as distinct from another or others of its kind (determiner)
  • A certain, indefinite, or unspecified (time); some (determiner)
  • A certain (person) (determiner)
  • An indefinite person regarded as typical of every person (pronoun)
  • Any indefinite person: used as the subject of a sentence to form an alternative grammatical construction to that of the passive voice (pronoun)
  • An unspecified person (pronoun)
  • The smallest whole number and the first cardinal number; unity (noun)
  • A numeral (1, I, i, etc) representing this number (noun)
  • A joke or story (esp in the one about) (noun)
  • The numeral 1 used as the lower figure in a time signature to indicate that the beat is measured in semibreves (noun)
  • Something representing, represented by, or consisting of one unit (noun)
  • One hour after noon or midnight (noun)
  • A blow or setback (esp in the phrase one in the eye for) (noun) (c) HarperCollins Publishers Ltd 2016

Use "one" in a sentence
  • "In one of the monthly support groups I run, one* of the stepmothers shared that she, her husband and 21 year old stepdaughter went to a family therapist for help."
  • "It makes me laugh to think about Trijang Rinpoche scurrying to collect his offerings, saying to his attendant, �put this one away�and this one�and this one�."
  • "Be of the lead characters I assume he is one of the main characters is a half-elf named Cage Stone."