sparrow

Any of various small birds of the family Emberizidae, having brownish or grayish plumage and found throughout the Americas, such as the song sparrow.

Any of various birds of the family Passeridae, especially the house sparrow.

Any of various similar birds of other families, such as the Java sparrow.

The housesparrow, Passer domesticus, a fringilline bird of Europe, which has been imported and naturalized in America, Australia, and other countries.

Some or any fringilline bird resembling the sparrow, as Passer montanus, the tree-sparrow; one of various finches and buntings, mostly of plain coloration.