- pious: Religious.
- pique: To excite a slight degree of anger in.
- piteous: Compassionate.
- pitiable: Contemptible.
- pitiful: Wretched.
- pitiless: Hard-hearted.
- pittance: Any small portion or meager allowance.
- placate: To bring from a state of angry or hostile feeling to one of patience or friendliness.
- placid: Serene.
- plagiarism: The stealing of passages from the writings of another and publishing them as one's own.
- planisphere: A polar projection of the heavens on a chart.
- plasticity: The property of some substances through which the form of the mass can readily be changed.
- platitude: A written or spoken statement that is flat, dull, or commonplace.
- plaudit: An expression of applause.
- plausible: Seeming likely to be true, though open to doubt.
- playful: Frolicsome.
- playwright: A maker of plays for the stage.
- plea: An argument to obtain some desired action.
- pleasant: Agreeable.
- pleasurable: Affording gratification.
- plebeian: Common.
- pledgee: The person to whom anything is pledged.
- pledgeor: One who gives a pledge.
- plenary: Entire.
- plenipotentiary: A person fully empowered to transact any business.
- plenitude: Abundance.
- plenteous: Abundant.
- plumb: A weight suspended by a line to test the verticality of something.
- plummet: A piece of lead for making soundings, adjusting walls to the vertical.
- pluperfect: Expressing past time or action prior to some other past time or action.
- plural: Containing or consisting of more than one.
- plurality: A majority.
- plutocracy: A wealthy class in a political community who control the government by means of their money.
- pneumatic: Pertaining to or consisting of air or gas.
- poesy: Poetry.
- poetaster: An inferior poet.
- poetic: Pertaining to poetry.
- poetics: The rules and principles of poetry.
- poignancy: Severity or acuteness, especially of pain or grief.
- poignant: Severely painful or acute to the spirit.
- poise: Equilibrium.
- polar: Pertaining to the poles of a sphere, especially of the earth.
- polemics: The art of controversy or disputation.
- pollen: The fine dust-like grains or powder formed within the anther of a flowering plant.
- pollute: To contaminate.
- polyarchy: Government by several or many persons of what- ever class.
- polycracy: The rule of many.
- polygamy: the fact or condition of having more than one wife or husband at once.
- polyglot: Speaking several tongues.
- polygon: A figure having many angles.