D defs.my
Entry 1 sense Webster, 1913

Pennant

/(pĕn"nant)/ · Pen·nant · IPA /ˈpɛnənt/
01 n. A small flag; a pennon. The narrow pennant, [or] long pennant (called also whip or coach whip) is a long, narrow piece of bunting, carried…
  1. 1.
    A small flag; a pennon. The narrow pennant, [or] long pennant (called also whip or coach whip) is a long, narrow piece of bunting, carried at the masthead of a government vessel in commission. The board pennant is an oblong, nearly square flag, carried at the masthead of a commodore's vessel.(Naut.)