add-on

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a component that is added to something to improve it
- the addition of a bathroom was a major improvement
- the addition of cinnamon improved the flavor
• Syn:
addition, improver
• Derivationally related forms:
improve (for: improver), add on, add (for: addition)
• Hypernyms:
component, constituent, element
• Hyponyms:
additive, afterthought, annex, annexe, extension,
wing, attachment, elongation
2. a supplementary component that improves capability
• Syn:
accessory, appurtenance, supplement
• Derivationally related forms:
add on, supplementary (for: supplement), supplemental (for: supplement), supplement (for: supplement), appurtenant (for: appurtenance), appertain (for: appurtenance), accessory (for: accessory), accessorial (for: accessory)
• Hypernyms:
component, constituent, element
• Hyponyms:
auto accessory, computer accessory, fitting, fixings, trimmings