There are 526 4-letter words containing P in the ENABLE dictionary — 13% of all 3,903 words at this length. P is a one-point tile, so the value in this list is positional rather than numerical — which of these you can play depends far more on where it fits the board than on what it scores.
The P falls in the first position more often than any other, in 256 of them. 23 of them use the letter more than once — palp, papa, paps, peep among them, which is the case worth checking twice when a game has told you a letter is present but not how many times.
If you know more than one letter, this page stops being the fast way to find it. Enter what you have in the unscrambler — the Contains, Starts with and Ends with filters combine, and setting both length fields to 4 narrows this list to the handful your letters actually allow.
Where the P sits
P in the first position (256)
paca pace pack pacs pact padi pads page paid paik pail pain pair pale pall palm palp pals paly pams pane pang pans pant papa paps para pard pare park parr pars part pase pash pass past pate path pats paty pave pawl pawn paws pays peag peak peal pean pear peas peat pech peck pecs peds peed peek peel peen peep peer pees pegs pehs pein peke pele pelf pelt pend pens pent peon pepo peps peri perk perm pert peso pest pets pews pfft pfui phat phew phis phiz phon phot phut pial pian pias pica pice pick pics pied pier pies pigs pika pike piki pile pili pill pily pima pimp pina pine ping pink pins pint piny pion pipe pips pipy pirn pish piso piss pita pith pits pity pixy plan plat play plea pleb pled plew plie plod plop plot plow ploy plug plum plus pock poco pods poem poet pogy pois poke poky pole poll polo pols poly pome pomp poms pond pone pong pons pony pood poof pooh pool poon poop poor pope pops pore pork porn port pose posh post posy pots pouf pour pout pows pram prao prat prau pray pree prep prex prey prez prig prim proa prod prof prog prom prop pros prow psis psst pubs puce puck puds puff pugh pugs puja puke pula pule puli pull pulp puls puma pump puna pung punk puns punt puny pupa pups pure puri purl purr purs push puss puts putt putz pyas pyes pyic pyin pyre