行っていらっしゃい: alternative form of いってらっしゃい (itterasshai)

see you later (said by a person staying, a stock phrase required by the Japanese etiquette, lit.: (after) going, come back)

pot calling the kettle black; six of one, half a dozen of the other

(organic chemistry) polyethylene

porcini

(architecture) porch

pouch (bag)

polystyrene

(politics, slang) A politician who submissively subscribes to the interests and policies of the United States; an American puppet.

七七日: the forty-ninth day after a person dies; the Buddhist memorial service that occurs forty-nine days after a person dies