pennon

n 1 long narrow triangular or swallow-tailed flag, originally used by a knight on his lance 狭长三角旗, 燕尾旗（原为骑士所执长矛上的饰物）. 2 = pennant.

penetrating, penetratingly, penetration, penetrative, penguin, penholder, penicillin, peninsula, peninsular, penis, penitence, penitent, penitential, penitentially, penitentiary, penitently, penknife (also `pocket-knife), penmanship, pennant, penniless, pennorth, Pennsylvania, penny, penny farthing, penny whistle, penny-pincher, pennyweight, pennyworth, penology, pension, pensionable, pensioner, pensive, pensively, pensiveness, pent up, pent-up, penta-, pentagon, pentagonal,