Roach
WordNet
noun
(1) European freshwater food fish having a greenish back
(2) Any of numerous chiefly nocturnal insects; some are domestic pests
(3) Street names for flunitrazepan
(4) The butt of a marijuana cigarette
(5) A roll of hair brushed back from the forehead
verb
(6) Cut the mane off (a horse)
(7) Comb (hair) into a roach