add on
verbTo incorporate (something extra, often an amount of money) into something else (often a bill).
To put an expansion (addition) onto a building, usually a home.
noun, verb — 6 senses
Etymology Deverbal from add on.
Sometimes Something which can be appended to something else.
Computer hardware, Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences, Software A software extension or hardware peripheral that provides additional functions or customization for a core application or system.
Card games, Poker Additional chips that can be purchased at specific times in tournament play.
Video games Synonym of expansion pack.
To incorporate (something extra, often an amount of money) into something else (often a bill).
To put an expansion (addition) onto a building, usually a home.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — authors: page histories for add-on and add on.