dual

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

1. consisting of or involving two parts or components usually in pairs (Freq. 3)
- an egg with a double yolk
- a double (binary) star
- double doors
- dual controls for pilot and copilot
- duple (or double) time consists of two (or a multiple of two) beats to a measure
• Syn:
double, duple
• Similar to:
multiple
• Derivationally related forms:
duality
2. having more than one decidedly dissimilar aspects or qualities
- a double (or dual) role for an actor
- "the office of a clergyman is twofold; public preaching and private influence"- R.W.Emerson
- "every episode has its double and treble meaning"-Frederick Harrison
• Syn:
double, twofold, two-fold, treble, threefold, three-fold
• Similar to:
multiple
3. a grammatical number category referring to two items or units as opposed to one item (singular) or more than two items (plural)
- ancient Greek had the dual form but it has merged with the plural form in modern Greek
• Similar to:
plural
• Derivationally related forms:
duality

• Từ đồng nghĩa / Synonyms:
  double, twofold, two-fold, treble, threefold, three-fold, duple