P.C.

Initialism of personal communication.

A percentage, a proportion (especially per hundred).

“only a small percent attain the top ranks”

One part per hundred; one percent.

A part of a larger whole, usually in such a form that it is able to be separated from other parts.

“I’d like another piece of pie.”

A single item belonging to a class of similar items

“a piece of machinery”

One of the figures used in playing chess, specifically a higher-value figure as distinguished from a pawn; by extension, a similar counter etc. in other games.

A coin, especially one valued at less than the principal unit of currency.

“a sixpenny piece”

An artistic creation, such as a painting, sculpture, musical composition, literary work, etc.

“She played two beautiful pieces on the piano.”

An article published in the press.

“Today's paper has an interesting piece on medical research.”

An artillery gun.

A gun.

“He's packin' a piece!”

(short for hairpiece) A toupee or wig, especially when worn by a man.

“The announcer is wearing a new piece.”

A slice or other quantity of bread, eaten on its own; a sandwich or light snack.

A sexual encounter; from piece of ass or piece of tail

“I got a piece at lunchtime.”

(mildly, short for piece of crap/piece of shit) A shoddy or worthless object (usually applied to consumer products like vehicles or appliances).

“Ugh, my new computer is such a piece. I'm taking it back to the store tomorrow.”

A cannabis pipe.

Used to describe a pitch that has been hit but not well, usually either being caught by the opposing team or going foul. Usually used in the past tense with got.

“he got a piece of that one;  she got a piece of the ball [...] and it's going foul.”

(sometimes derogatory) An individual; a person.

A castle; a fortified building.

A pacifier; a dummy.

A distance.

“a fair piece off”

A structured practice row, often used for performance evaluation.

“At practice we rowed four 5,000 meter pieces.”

An amount of work to be done at one time; a unit of piece work.

A rectangular piece of thick paper or thin cardboard intended to be written on and mailed without an envelope. In the case of a picture postcard one side carries a picture or photograph.