pennant

n.三角旗

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