Term: doubleton: (bridge) a pair of playing cards that are the only cards in their suit in the hand dealt to a player
Broader: couple: two items of the same kind | Unrelated: center: politically moderate persons; centrists
Broader: couple: two items of the same kind | Unrelated: footboard: a narrow platform on which to stand or brace the feet
Broader: couple: two items of the same kind | Unrelated: calf: young of domestic cattle
Broader: couple: two items of the same kind | Unrelated: foil: picture consisting of a positive photograph or drawing on a transparent base; viewed with a projector
Broader: couple: two items of the same kind | Unrelated: child abuse: the physical or emotional or sexual mistreatment of children
Broader: couple: two items of the same kind | Unrelated: polymorphism: (genetics) the genetic variation within a population that natural selection can operate on
Broader: couple: two items of the same kind | Unrelated: vanguard: the leading units moving at the head of an army
Broader: couple: two items of the same kind | Unrelated: true bug: any of various insects of the order Hemiptera and especially of the suborder Heteroptera
Broader: couple: two items of the same kind | Unrelated: moot court: a mock court where law students argue hypothetical cases
Broader: couple: two items of the same kind | Unrelated: nonbiodegradable pollution: pollution that accumulates in the environment and may appear in the food chain