Synonyms to both

either, a certain, a deux, an, any, any one, anybody, anyone, anything, atomic, aught, correspondingly, exclusive, for two, identically, in kind, in like manner, in that way, individual, indivisible, integral, irreducible, like, like that, like this, likewise, lone, monadic, monistic, one, similarly, simple, single, singular, so, sole, solid, solitary, tete-a-tete, the two, thus, unanalyzable, undivided, uniform, unique, unitary, whole, team, age group, band, battalion, bevy, body, brace, bracket, brigade, bunch, cabal, cast, clique, cohort, collaborate, combine, company, complement, conjugate, conspire, contingent, cooperate, corps, coterie, couple, couple up, couplet, covey, crew, crowd, detachment, detail, distich, division, double harness, double-harness, double-team, doublet, duad, duet, duo, dyad, eight, eleven, equipage, faction, first string, first team, five, fleet, four-in-hand, gang, group, grouping, groupment, in-group, join together, join up, junta, link up, match, mate, mates, mob, movement, nine, out-group, outfit, pack, pair, pair off, party, peer group, phalanx, platoon, posse, randem, regiment, reserves,