noun🔗ShareA set containing precisely two elements."My wallet contained a doubleton of bills: a five and a ten. "mathnumberelementChat with AIVocabulary GamePractice Reading
noun🔗ShareA pair of cards of the same suit, which are the only cards of that suit in a player's hand"The student held a doubleton of hearts, a pair of ten and a queen of hearts, but needed more cards to complete the set. "gameChat with AIVocabulary GamePractice Reading
