duo

nouns

two items of the same kind
brace, couple, couplet, distich, duad, duet, duo, dyad, pair, span, twain, twosome, yoke
two performers or singers who perform together
duet, duette, duo
a pair who associate with one another
"the engaged couple"; "an inseparable twosome"
couple, duet, duo, twosome
a musical composition for two performers
duet, duette, duo