plump (adj.), plump (to fall heavily).
plane (tree), plain [both various].
plot (of ground), plot (stratagem), + verbs.
pole, poll.
poach, (eggs), poach (steal game).
pore (of skin), pore (top. over), paw.
potter (v.), potter (s.).
pall (v.), pall (cloak), pawl (mechanics).
pry (inquisitive), pry (to prise open).
prise, prize.