Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. That can be counted: countable items; countable sins.
  • adj. Mathematics That can be put into a one-to-one correspondence with the positive integers.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Capable of being counted; having a quantity or a numerical attribute.
  • adj. Having a bijection with a subset of the natural numbers.
  • adj. Countably infinite; having a bijection with the natural numbers.
  • adj. Freely usable with the indefinite article and with numbers, and therefore having a plural form.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Capable of being numbered.

from The Century Dictionary and Cyclopedia

  • Capable of being counted, numbered, or reckoned.
  • Accountable.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. that can be counted

Etymologies

to count + -able (Wiktionary)

Examples

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