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Definition of "roach" [roach]

  • A freshwater fish (Rutilus rutilus) of northern Europe. (noun)
  • Any of various similar or related fishes, such as some North American sunfishes. (noun)
  • The cockroach. (noun)
  • Slang The butt of a marijuana cigarette. (noun)
  • A roll of hair brushed up from the forehead or temple. (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.

Use "roach" in a sentence
  • "In fact, the roach is able to lift up its front legs again and walk."
  • "And to think back to his comments about Michael Irvin's "what they call a roach" moment and the ribbing Greggo gave him is now laughable."
  • "I accept the sneer with pleasure, as I would an honorary degree in roach control from the University of … well, Ockham."