Roach /(?)/

Roach

n.
  1. A cockroach. (Zool.)

Roach

n.
  1. A European fresh-water fish of the Carp family (Leuciscus rutilus). It is silver-white, with a greenish back. (Zool.)
  2. A convex curve or arch cut in the edge of a sail to prevent chafing, or to secure a better fit. (Naut.)

Phrases & Compounds
As sound as a roach
perfectly sound.

Roach

v. t.
  1. To cause to arch.
  2. To cut off, as a horse's mane, so that the part left shall stand upright.