trio, two, couple, duo, three, twosome, four, both, string, bevy, slew, seven, twin, dueling, foursome, clutch, handful, quartet, five, threesome, slue, brass knucks, sneak thief, series, flurry, bob wig, nine, mary janes, argyles, suspender belt, bunch, holmia, bootees, fivesome, mens, trilbies, morris dancer, plethora, bermuda shorts, oxfords, smattering, their, lavaliere, lovebirds, stetsons, moppy, doublets, fistful, some, garters, knickerbockers, twills, halters, with, dozens, gents, tandem, multiple, bermudas, galore, passel, pfennigs, mukluk, beaus, gaggle, aplenty, lacing, trifecta, tie, sable coat, twp, glen plaid, victors, these, rash, oakleys, triumvirate, quintet, slingbacks, playsuit, tailcoats, those, drawstring bag, swapping, chignons, boyfriend, pinafores, nightshirts, brogans, velcro, swains, windcheater, spate, peignoir, chinning, notching, bookend, tricolored, skort, daps, pedal pusher, newlyweds, pairs, row, piece, apartment, stanza, bedroom, bit, drawer, fragment, pick, cage, cluster, key, petal, place, story, stud, triplet, cut, atom, electron, intramolecular, sibling, trait, wealth, attachment, crosssectional, cumulated, delocalized, dipole, electrostatic, fairer, interatomic, intermolecular, ligand, model, offspring, olefin, parameter

bang, bed, be intimate, bonk, breed, bugger, conceive, couple, cover, deflower, do it, duet, duo, get it on, have a go at it, have intercourse, have it away, have it off, hump, jazz, know, lie with, love, make out, mismatch, mismate, mount, nick, ride, screw, serve, service, sleep with, sodomize, tread, tweedledee and tweedledum, tweedledum and tweedledee, twosome

., abruptly-pinnate, abruptly-pinnate leaf, additive inverse, adrenal, adrenal gland, amaranthus spinosus, anisogamete, anisogametic, antenna, anterior crural nerve, au pair girl, azygos, azygous, batwing, bones, brachiopod, bridge partner, broad-leaved montia, canis aureus, carrick bitt, castanets, cavernous sinus, centipede, chelicera, chilopoda, chopstick, chopsticks, clappers, class chilopoda, class tardigrada, clatonia lanceolata, cleats, coccygeal nerve, compound lever, conjoined twin, conjugate, conjugated, couple, coupled, covalent bond, crampon, crampoon, cufflink, dancing partner, davit, diapsid, diapsid reptile, dipole, diptera, dipteran, dipteron, dipterous insect, doubleton, double helix, double quotes, double reed, draw, duet, duo, earmuff, earwig, enantiomer, enantiomorph, even-pinnate, even-pinnate leaf, eyeglasses, fallopian tube, feeler, femoral nerve, fin, finger cymbals, forceps, forewing, forge, frontal sinus, full house, genus listera, genus spadella, glasses, gnawer, gnawing animal, goalpost, green gland, harp, headset, involucre, isogamete, isometry, jackal, lampshell, lamp shell, law of independent assortment, law of segregation, linkage group, linked genes, listera, listera ovata, maraca, match, mates, maxillary sinus, mericarp, metric space, millstone, monogenic, monogenic disease, monogenic disorder, montia cordifolia, multiplicative inverse, nervus coccygeus, nervus femoralis, nervus phrenicus, odd, opposite, order diptera, oviduct, pair off, pannier, pant leg, parapodium, paripinnate, parity, partner off, pasties, pectoral fin, pelvic fin, phrenic nerve, polar, post, postilion, postillion, prothorax, pyjama, reciprocal, reciprocal cross, rein, ridge rope, rings, rodent, saddlebag, salwar, scull, segregation, select, shades, shalwar, shoebox, shrimp, siamese twin, singleton, sinus cavernosus, skid, specs, spectacles, spoonerism, spring beauty, suprarenal gland, swing, synapsid, synapsid reptile, tailfin, tail fin, tardigrada, thorny amaranth, topsail, track, trouser leg, true lobster, twayblade, twin bed, two-winged insects, twosome, unmatched, unmated, unpaired, ureter, uterine tube, ventral fin, water wings, wing, yoke, zill

2, assemblage, bring together, conjoin, deuce, gathering, ii, join, poker hand, set, two, unify, unite

brace, copulate, couple, couplet, distich, doubleton, duad, duet, duo, dyad, match, mate, pair off, partner off, span, twain, twin, twosome, yoke