roach

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A freshwater fish (Rutilus rutilus) of northern Europe.
2. n. Any of various similar or related fishes, such as some North American sunfishes.
3. n. The cockroach.
4. n. Slang The butt of a marijuana cigarette.
5. n. A roll of hair brushed up from the forehead or temple.
6. n. A hairstyle especially among certain Native American peoples in which the head is shaved except for a strip from front to back across the top.
7. n. Nautical An outward curve in the leech of a fore-and-aft sail.
8. v. To brush (hair) in a roach.
9. v. To shave (the mane of a horse) to a short bristle.

Century Dictionary and Cyclopedia

1. n. A common cyprinoid fish of Europe, Leuciscus rutilus. It inhabits the lakes, ponds, and slow-running rivers of England and of the south of Scotland, and is common in most other rivers in temperate parts of Europe. Its color is a grayish-green, the abdomen being silvery-white, and the fins reddish. It is gregarious, and the shoals are often large. Its average weight is under a pound, and, though a favorite with anglers, it is not much esteemed for the table.
2. n. In the United States, one of many different fishes like or mistaken for the roach, as some sunfish of the genus Lepomis or Pomotis;
3. n. the spot or lafayette
4. n. the American chub, Semotilus atromaculatus.
5. n. A rock.
6. n. Refuse gritty stone.
7. To make hard like a rock.
8. n. Nautical, a concave curve in the leech or foot of a square sail, to improve the fit of the sail. A convex curve used in the head and foot of fore-and-aft sails is called a sweep.
9. n. An upstanding curl or roll of hair over the forehead, like the roach of a sail.
10. To cause to stand up or arch; make projecting or convex: as, his hair was roached up over his forehead.
11. To cut short so as to cause to stand up straight; hog: said of horses' manes.
12. n. A rash, or eruption on the skin.
13. n. A cockroach.
14. n. The redfin, Rutilus rutilus, a common European shiner or minnow of the family Cyprinidæ.
15. n. In England, a shell limestone occurring at the top of the Portland Stone or Portlandian on the Isle of Portland.

Wiktionary

1. n. A small freshwater fish in the carp family (Cyprinidae), Rutilus rutilus.
2. n. US a cockroach.
3. n. US, slang, smoking A butt of a marijuana cigarette.
4. n. UK, slang, smoking The filter of a rolled cigarette or joint, made from card or paper.
5. n. nautical An extra curve of material added to the leech edge of a sail to increase the sail area.

GNU Webster's 1913

1. n. (Zoöl.) A cockroach.
2. n. A European fresh-water fish of the Carp family (Leuciscus rutilus). It is silver-white, with a greenish back.
3. n. An American chub (Semotilus bullaris); the fallfish.
4. n. The redfin, or shiner.
5. n. (Naut.) A convex curve or arch cut in the edge of a sail to prevent chafing, or to secure a better fit.
6. v. To cause to arch.
7. v. To cut off, as a horse's mane, so that the part left shall stand upright.

WordNet 3.0

1. v. cut the mane off (a horse)
2. n. a roll of hair brushed back from the forehead
3. n. street names for flunitrazepan
4. n. European freshwater food fish having a greenish back
5. n. any of numerous chiefly nocturnal insects; some are domestic pests
6. v. comb (hair) into a roach
7. n. the butt of a marijuana cigarette