ROACH

vt to cause to arch.

2. roach ·noun the redfin, or shiner.

3. roach ·noun a cockroach.

4. roach ·noun an american chub (semotilus bullaris); the fallfish.

5. roach ·vt to cut off, as a horse's mane, so that the part left shall stand upright.

6. roach ·noun a convex curve or arch cut in the edge of a sail to prevent chafing, or to secure a better fit.

7. roach ·noun a european fresh-water fish of the carp family (leuciscus rutilus). it is silver-white, with a greenish back.