Add-on — synonyms, definition

1. add-on (Noun)

accessory addition affix appendage appendix appurtenance bolt-on improver suffix supplement tab tag

add-on (Noun) — A component that is added to something to improve it. ex. "the add-on of a bathroom was a major improvement"

add-on (Noun) — A supplementary component that improves capability.

component constituent element accoutrements additive afterthought annex annexe attachment auto accessory computer accessory elongation extension fitting fixings paraphernalia trappings trimmings wing

2. add-on (Verb)

append

add-on (Verb) — Make an addition. ex. "Let's add on to this"

add-on (Verb) — Add to the very end. ex. "He added on a glossary to his novel where he used an invented language"

add attach annex