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WordNet-Online
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Noun roach has 4 senses
- roach - the butt of a marijuana cigarette
--1 is a kind of butt, stub
- R-2, Mexican valium, rophy, rope, roofy, roach, forget me drug, circle - street names for flunitrazepan
--2 is a kind of flunitrazepan, Rohypnol
- cockroach, roach - any of numerous chiefly nocturnal insects; some are domestic pests
--3 is a kind of dictyopterous insect
--3 is a member of Blattodea, suborder Blattodea, Blattaria, suborder Blattaria
--3 has particulars: | | oriental cockroach, oriental roach, Asiatic cockroach, blackbeetle, Blatta orientalis; American cockroach, Periplaneta americana; Australian cockroach, Periplaneta australasiae; German cockroach, Croton bug, crotonbug, water bug, Blattella germanica; giant cockroach |
- roach, Rutilus rutilus - European freshwater food fish having a greenish back
--4 is a kind of cyprinid, cyprinid fish
--4 is a member of Rutilus, genus Rutilus
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