| A | B |
| Peremptory | putting an end to or precluding the right of action, debate, or delay |
| Perjure | obsolete; to cause to commit perjury, to lie |
| Permeate | to spread or diffuse through |
| Pernicious | highly injurious or destructive, deadly |
| Persevere | to persist in a state, enterprise, or undertaking in spite of counterinfluences |
| Phobia | an illogical fear of a particular object or thing |
| Plagiarism | an act or instance of plagiarizing |
| Plaintive | expressive of suffering and woe, melancholy |
| Plethora | a bodily condition characterized by an excess of blood |
| Poignant | painfully affecting the feelings, piercing |
| Precarious | depending on the will or pleasure of another |
| Precocious | exhibiting mature qualities at an unusually early age |
| Predatory | inclined to injure or exploit others for personal gain or profit |
| Prelude | an introductory performance, event, preparinmg for the principal matter |
| Premise | something assumed or taken for granted |