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Etymology 1[edit]

From Old French roche, from Middle Low German roche, ruche ‎(ray (fish)); cognate with German Rochen ‎(ray (fish)).


roach ‎(plural roach)

  1. Certain members of the fish family Cyprinidae, including:
    1. Species in the genus Rutilus, especially:
      1. The common roach (Rutilus rutilus)
    2. The California roach, of the monotypic genus Hesperoleucus

Etymology 2[edit]

Back-formation from cockroach, as if it were a compound.


roach ‎(plural roaches)

  1. (US) A cockroach.

Etymology 3[edit]

EB1911 - Volume 01 - Page 001 - 1.svg This entry lacks etymological information. If you are familiar with the origin of this term, please add it to the page per etymology instructions.


roach ‎(plural roaches)

  1. (US, slang, smoking) A butt of a marijuana cigarette.
  2. (Britain, slang, smoking) The filter of a rolled cigarette or joint, made from card or paper.
  3. (nautical) An extra curve of material added to the leech edge of a sail to increase the sail area.
  4. A kind of headdress worn by some of the indigenous peoples of North America.