DICT.TW Dictionary Taiwan

 qua·ter·ni·ty /kwəˈtɝnəti, kwɑ-/
 四個一組,四人一組,四位一體

 Qua·ter·ni·ty n.
 1. The number four. [Obs.]
 2. The union of four in one, as of four persons; -- analogous to the theological term trinity.
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 quaternity
      n : the cardinal number that is the sum of three and one [syn: four,
           4, IV, tetrad, quatern, quaternion, quaternary,
           quartet, quadruplet, foursome, Little Joe]