- couple, pair, twosome, twain, brace, span, yoke, couplet, distich, duo, duet, dyad, duad - two items of the same kind
--1 is a kind of two, 2, II, deuce
--1 has particulars: doubleton - couplet - a stanza consisting of two successive lines of verse; usually rhymed
--2 is a kind of stanza
--2 has parts: line of poetry, line of verse
--2 has particulars: closed couplet; heroic couplet