Noun add on has 2 senses
  1. addition, add-on, improver - a component that is added to something to improve it; "the addition of a bathroom was a major improvement"; "the addition of cinammon improved the flavor"
    --1 is a kind of component, constituent, element
    --1 has particulars:
     additive; afterthought; annex, annexe, extension, wing; attachment; elongation, extension
    Derived form: verb add on1
  2. accessory, appurtenance, supplement, add-on - a supplementary component that improves capability
    --2 is a kind of component, constituent, element
    --2 has particulars:
     auto accessory; computer accessory; fitting; fixings, trimmings
    Derived form: verb add on2
,Verb add on has 2 senses
  1. add on - make an addition; "Let's add on to this"
    --1 is one way to
    add
    Derived form: noun add-on1
    Sample sentence:
    Somebody ----s something
  2. append, add on, supplement, affix - add to the very end; "He appended a glossary to his novel where he used an invented language"
    --2 is one way to attach
    Derived form: noun add-on2
    Sample sentences:
    Somebody ----s something
    Somebody ----s something to somebody
,
TOP