(colloquial) Something that is personally annoying; a personal dislike.

(nautical) A blue signal flag with a white rectangle in the centre, signifying "P". When flown alone, indicates that a ship is ready to sail, requiring all crew members and passengers to return on board.

(card games, intransitive) In whist, to play a blue peter.

A non-commissioned officer in the Canadian, US and UK Navy and the US Coast Guard; roughly equivalent to a sergeant in the army

A descending V-shaped point in the hairline in the middle of the forehead.

(geography) A piece of land projecting into water from a larger land mass.

(cardiology, medicine) Intermittent crushing chest pain caused by reversible myocardial ischemia.

(idiomatic) Teeth.

(grammar) A perfect tense that expresses action in the past (usually completed) with consequences in the present time.

Not at war; not disturbed by strife or turmoil. / Inclined to peace. / Motionless and calm.