Piece

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"

(usually with together) To assemble (something real or figurative).

"These clues allowed us to piece together the solution to the mystery."

To make, enlarge, or repair, by the addition of a piece or pieces; to patch; often with out.

"to piece a garment"

To produce a work of graffiti more complex than a tag.