Sparrow

Noun

 * 1) The house sparrow, Passer domesticus; a small bird with a short bill, and brown, white and gray feathers.
 * 2) A member of the family Passeridae, comprising small Old World songbirds.
 * 3) A member of the family Emberizidae, comprising small New World songbirds.
 * 4) Generically, any small, nondescript bird.

Derived terms

 * sparrowhawk
 * house sparrow
 * tree sparrow