Definition of pennant

• n. - A small flag; a pennon. The narrow, / 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.
• n. - A rope or strap to which a purchase is hooked.