Definitions from Wiktionary ( )

▸ noun:  Certain members of the fish family Cyprinidae, including:
▸ noun:  Any fish of species in the genus Rutilus, especially:
▸ noun:  A common roach (Rutilus rutilus)
▸ noun:  A California roach, of the monotypic genus Hesperoleucus
▸ noun:  (US) A cockroach.
▸ noun:  (US, slang, smoking) The butt of a marijuana cigarette.
▸ noun:  (US, slang, smoking) An entire marijuana cigarette, blunt, or joint.
▸ noun:  (UK, slang, smoking) The filter of a rolled cigarette or joint, made from card or paper.
▸ noun:  (nautical) Sail material that forms a concave curve rather than straight leech (aft edge) of a sail to increase the sail area over that of a simple triangular sail.
▸ noun:  A haircut or a similar-looking kind of headdress worn by some of the indigenous peoples of North America, often red.
▸ verb:  (transitive) To cut or shave off the mane of a horse so that the remaining hair stands up on the neck.
▸ verb:  (transitive, by extension) To cut a person's hair so that it stands straight up.
▸ noun:  (UK, obsolete, mining) A bed or stratum of some mineral.
▸ noun:  (UK, regional) Gritty or coarse rock; especially Portland stone or similar limestone.
▸ noun:  A surname.
▸ noun:  A surname from Anglo-Norman [in turn from Norman, in turn from Old French]
▸ noun:  A surname from placenames
▸ noun:  A placename
▸ noun:  A rivers in the United Kingdom
▸ noun:  The River Roach, a river in Essex, England, which is a stream before becoming a tidal river and joining the River Crouch.
▸ noun:  A places and rivers in the United States
▸ noun:  A short river in Piscataquis County, Maine, which flows into Moosehead Lake.
▸ noun:  A short river in Virginia, a tributary of the Rivanna River.
▸ noun:  An unincorporated community in Camden County, Missouri.
▸ noun:  A ghost town in Clark County, Nevada.
▸ noun:  An unincorporated community in Cabell County, West Virginia.
▸ noun:  Alternative spelling of Roch, the River Roch or Roach, A river in Greater Manchester, England. Roach appears to be mainly an older spelling. [A river in Greater Manchester, England, which joins the River Irwell.]

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