| Term | Definition |
| prolix | tediously long and wordy |
| prologue | introduction |
| promenade | a stroll or a walk; an area used for walking |
| promiscuous | sexually loose |
| promontory | piece of land that juts out |
| promulgate | to announce; to advocate |
| prone | reclining; lying flat; inclined |
| propagate | to spread; to multiply |
| propensity | inclination; tendency |
| prophetic | predicting |
| propinquity | nearness; closeness |
| propitious | favorable |
| proponenent | a person who supports a cause or doctrine |
| propriety | conformity; appropriateness |
| prosaic | dull; commonplace; unimaginative |
| proscribe | to denounce; exile |
| proselyte | a person who has changed from one religion to another; a convert |
| prospectus | a report describing a forthcoming project |
| prostrate | lying flat; thrown or fallen to the ground |
| protagonist | main character |