Synonyms of twins

1 Syllable
pair, dyad, twains, mate, pairs, match
2 Syllables
ringer, clone, double, doublet, deuce, duals
3 Syllables
companion, diremption, counterpart, binaries, likeness
4 Syllables
dualities, coordinate, reciprocal, doppelganger, duality, look-alike, corollary, duplicate
6 Syllables
bilaterality