There are 3 definitions of roach in English:

roach1

Syllabification: roach
Pronunciation: /rōCH
 
/

noun

informal
1North American A cockroach.
[ mid 19th century: shortened form]
More example sentences
  • For your gaming pleasure, a whole new assortment of mutant insects have been created including killer roaches, acid-shooting houseflies and fire ants.
  • Sofia tells them about the horrid and rancid conditions in which she lives, with fleas, vermin, roaches, and about her job cleaning the dirty sheets.
  • When I was a graduate student, the room we were staying in had roaches.
2The butt of a marijuana cigarette.
[ 1930s: of unknown origin]
More example sentences
  • I went from car to car in the lot, going up to people's windows when they pulled in, even people I didn't know, but nobody even had a roach.

Definition of roach in:

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Word of the day animalcule
Pronunciation: ˌanəˈmalˌkyo͞ol
noun
a microscopic animal

There are 3 definitions of roach in English:

roach2

Syllabification: roach
Pronunciation: /rōCH
 
/

noun (plural same)

An edible Eurasian freshwater fish of the minnow family, popular with anglers. It can hybridize with related fishes, notably rudd and bream.
  • Rutilus rutilus, family Cyprinidae
More example sentences
  • I caught another two nice roach before catching a few bream up to over five pounds.
  • A shoal of small roach will appear as a black cloud suspended in mid water.
  • Both had a single bream plus plenty of small roach on feeder tactics.

Origin

Middle English: from Old French roche, of unknown ultimate origin.

Definition of roach in:

There are 3 definitions of roach in English:

roach3

Syllabification: roach
Pronunciation: /rōCH
 
/

noun

Sailing
A curve, in or out, in the edge of a sail, especially in the leech of a fore-and-aft sail.

Origin

late 18th century: of unknown origin.

Definition of roach in: