Definition of "alter" [al•ter]

  • To change or make different; modify: altered my will. (verb-transitive)
  • To adjust (a garment) for a better fit. (verb-transitive)
  • To castrate or spay (an animal, such as a cat or a dog). (verb-transitive)
  • To change or become different. (verb-intransitive)
  • To make or become different in some respect; change (verb)

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.

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Use "alter" in a sentence
  • "Over the alter is a painting of Christ and his twelve apostles at ye passover supper very naturally drawn, and over it a Large window full of fine paintings – the history of the testaments."
  • "They argue that the socialization, rituals and beliefs that make up religion help the brain alter itself, to “brainsoothe.”"
  • "TV lounges and other communal shared space inside a closed building would certain alter what a reasonable person would expect the landlord to have done in selecting tenants."