Definition of "number" [num•ber]

  • Mathematics A member of the set of positive integers; one of a series of symbols of unique meaning in a fixed order that can be derived by counting. (noun)
  • Mathematics A member of any of the further sets of mathematical objects, such as negative integers and real numbers. (noun)
  • Arithmetic. (noun)
  • A symbol or word used to represent a number. (noun)
  • A numeral or a series of numerals used for reference or identification: his telephone number; the apartment number. (noun)
  • A concept of quantity that is or can be derived from a single unit, the sum of a collection of units, or zero. Every number occupies a unique position in a sequence, enabling it to be used in counting. It can be assigned to one or more sets that can be arranged in a hierarchical classification: every number is a complex number; a complex number is either an imaginary number or a real number, and the latter can be a rational number or an irrational number; a rational number is either an integer or a fraction, while an irrational number can be a transcendental number or an algebraic number (noun)

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.

  • The symbol used to represent a number; numeral (noun)
  • A numeral or string of numerals used to identify a person or thing, esp in numerical order (noun)
  • The person or thing so identified or designated (noun)
  • The sum or quantity of equal or similar units or things (noun)
  • One of a series, as of a magazine or periodical; issue (noun)
  • A self-contained piece of pop or jazz music (noun)
  • A self-contained part of an opera or other musical score, esp one for the stage (noun)
  • A group or band of people, esp an exclusive group (noun)
  • A person, esp a woman (noun)
  • An admired article, esp an item of clothing for a woman (noun)
  • A cannabis cigarette (noun)
  • A grammatical category for the variation in form of nouns, pronouns, and any words agreeing with them, depending on how many persons or things are referred to, esp as singular or plural in number and in some languages dual or trial (noun)
  • To assign a number to (verb)
  • To add up to; total (verb)
  • To list (items) one by one; enumerate (verb)
  • To put or be put into a group, category, etc (verb)
  • To limit the number of (verb) (c) HarperCollins Publishers Ltd 2016

Use "number" in a sentence
  • "And the interaction with the customer rep. led me through several instances of Things I Don't Care About: type of my account, account number (I know my _member number_, but not my account numbers), my phone banking password (I call them once a year, roughly, and they still want me to remember a token for them...) et.c..."
  • "This is because the predicate ˜@ (number of planets)™ is true, at a world w, of whatever the predicate ˜number of planets™ is true of at the actual world."
  • "_Adjectives_ express the _qualities_ which distinguish one person or thing from another; in one form they express quality _without comparison_; in another, they express comparison _between two_, or between _one_ and a number taken collectively, -- and in a third they express comparison between _one_ and a _number_ of others taken separately."