pelo, m., hair.
pelota, f., ball; jugar á la pelota, to play ball.
pena, f., punishment, sorrow, trouble.
pendón, m., standard.
penetrar, to enter, penetrate; penetrar por, to pass through.
penitencia, f., penance.
penitente, penitent.
penosamente, painfully.
penoso -a, laborious, difficult.
pensamiento, m., thought.