dual

• (s) consisting of or involving two parts or components usually in pairs
  • 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
  duple, double,
• (s) 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
  double, twofold, two-fold, threefold, three-fold, treble,
• (s) 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

Synonyms

Words of close approximity