| perforate | To make a hole or holes through. |
| perform | To accomplish. |
| perfumery | The preparation of perfumes. |
| perfunctory | Half-hearted. |
| perhaps | Possibly. |
| perigee | The point in the orbit of the moon when it is nearest the earth. |
| periodicity | The habit or characteristic of recurrence at regular intervals. |
| peripatetic | Walking about. |
| perjure | To swear falsely to. |
| perjury | A solemn assertion of a falsity. |
| permanence | A continuance in the same state, or without any change that destroys the essential form or nature. |
| permanent | Durable. |
| permeate | To pervade. |
| permissible | That may be allowed. |
| permutation | Reciprocal change, different ordering of same items. |
| pernicious | Tending to kill or hurt. |
| perpendicular | Straight up and down. |
| perpetrator | The doer of a wrong or a criminal act. |
| perpetuate | To preserve from extinction or oblivion. |
| perquisite | Any profit from service beyond the amount fixed as salary or wages. |
| persecution | Harsh or malignant oppression. |
| perseverance | A persistence in purpose and effort. |
| persevere | To continue striving in spite of discouragements. |
| persiflage | Banter. |
| persist | To continue steadfast against opposition. |
| persistence | A fixed adherence to a resolve, course of conduct, or the like. |
| personage | A man or woman as an individual, especially one of rank or high station. |
| personal | Not general or public. |
| personality | The attributes, taken collectively, that make up the character and nature of an individual. |
| personnel | The force of persons collectively employed in some service. |
| perspective | The relative importance of facts or matters from any special point of view. |
| perspicacious | Astute. |
| perspicacity | Acuteness or discernment. |
| perspicuous | Lucid. |
| perspiration | Sweat. |
| perspire | To excrete through the pores of the skin. |
| persuade | To win the mind of by argument, eloquence, evidence, or reflection. |
| persuadable | capable of influencing to action by entreaty, statement, or anything that moves the feelings. |
| pertinacious | Persistent or unyielding. |
| pertinacity | Unyielding adherence. |
| pertinent | Relevant. |
| perturb | To disturb greatly. |
| perturbation | Mental excitement or confusion. |
| perusal | The act of reading carefully or thoughtfully. |
| pervade | To pass or spread through every part. |
| pervasion | The state of spreading through every part. |
| pervasive | Thoroughly penetrating or permeating. |
| perverse | Unreasonable. |
| perversion | Diversion from the true meaning or proper purpose. |
| perversity | Wickedness. |