peek, peak, park, perk, pack, peck, pick, part
Keep and kelp are four letter words starting with K and ending with P.
Pregnant :P
plaza
jump
Some words beginning with P and ending with K:PackPaddockPadlockPaintworkPaperbackPaperworkParkPartookPassbookPassmarkPatchworkPaybackPaycheckPeacockPeakPebrookPeckPeekPerkPickPickabackPickwickPieceworkPiggybackPillockPinkPinprickPipeworkPipsqueakPitchforkPlacekickPlanckPlankPlasterworkPlaybackPlaybookPlonkPluckPlunkPockPocketbookPockmarkPollackPollockPoppycockPorkPostmarkPothookPotluckPrankPreshrankPreshrinkPreshrunkPresoakPrickPuckPullbackPunk
Mump.
Pan, Pain, Pin
calthrop
Carhop
* poetic * poniac
Teashop treetop trollop .
Parka, panda, pizza, plaza...