Plausible (adj.)
can be believed; reasonable
Plaudit (n.)
statement giving strong praise
Plethora (n.)
an excess
Pliable (adj.)
flexible; not stubborn
Plumage (n.)
feathers of a bird
Plummet (v.)
fall steadily and steeply
Poignant (adj.)
deeply moving;strong affecting emotions
Precipitous (adj.)
dangerously high or steep
Quotidian (adj.)
occurring every day; mundane
Recapitulate (v.)
briefly restate; summarize