I. pass·er ˈpasə(r), ˈpaas-, ˈpais-, ˈpȧs- noun
( -s )
Etymology: Middle English, from passen to pass + -er
: one that passes or causes to pass
II. pas·ser ˈpasə(r) noun
Usage: capitalized
Etymology: New Latin, from Latin, sparrow
: a genus consisting of the house sparrow and its near relatives