add on
verb
- to show off
- to take up
- add to existing mass
Wiktionary
noun
- Alternative form of add-on.
“The manufacturer sold many add ons for the basic camera.”
“The secretary offered a typing and copying service for theses, with the option of binding as an add on.”
verb
- 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.