advocate, agent, alter ego, alternating, alternative, amicus curiae, analogy, attorney, back and fill, back-and-forth, backup, backup man, bandy, battledore and shuttlecock, be here again, be quits with, beating, champion, change, changeling, circle, circling, come again, come and go, come around, come round, come round again, come up again, commute, comparison, compensate, complementary, cooperate, copy, corresponding, counterchange, counterfeit, cover, cycle, cyclic, deputy, dither, do a hitch, do a stint, do a tour, do time, double, dummy, ebb and flow, enlist, epochal, equal, equivalent, equivocate, ersatz, even, every other, exchange, exchangeable, executive officer, exponent, fake, figurehead, fill in for, fill-in, flounder, fluctuate, get back at, get even with, ghost, ghostwriter, give and take, go through phases, have a go, have tenure, hitch and hike, hold office, imitation, in rotation, interchange, interchangeable, intermit, intermittent, isochronal, isochronous, keep a watch, lieutenant, locum, locum tenens, logroll, makeshift, measured, metaphor, metonymy, metronomic, mock, next best thing, oscillate, oscillatory, other, paranymph, pass and repass, pay back, pendulate, periodic, periodical, permute, personnel, phony, pinch, pinch hitter, pleader, procurator, provisional, proxy, pulsate, pulse, pulsing, re-up, reappear, reciprocal, reciprocate, reciprocative, recur, recurrent, recurring, reenlist, relief, relieve, reoccur, repeat, replacement, replacing, representative, requite, reserve, reserves, respond, retaliate, return, return the compliment, revolve, rhythmic, ride and tie, ring the changes, ringer, roll around, rotary, rotate, rotating, seasonal, second, second in command, second string, secondary, seesaw, serial, serve time, shift, shilly-shally, shuffle, shuttle, shuttlecock, sign, sign up, sine wave, spare, spares, spell, spell off, stagger, stand-in, steady, stopgap, sub, substituent, substitute, substitution, succedaneum, succeed, successive, superseder, supplanter, surrogate, swap, sway, swing, switch, symbol, synecdoche, take turns, teeter, teeter-totter, temporary, tentative, tergiversate, third string, time off, to-and-fro, token, totter, trade, transpose, turn, understudy, undulant, undulate, undulatory, up-and-down, utility, utility man, utility player, vacillate, variant, vary, vicar, vicar general, vicarious, vice, vice-president, vice-regent, vicegerent, wavelike, waver, wax and wane, wheel, wheel around, wheeling, wibble-wabble, wigwag, wobble, zigzag
be irresolute, hang in suspense, keep in suspense, leave "ad referendum", think twice about, pause, dawdle, remain neuter, dillydally, hesitate, boggle, hover, dacker, hum and haw, demur, not know one's own mind, debate, balance, dally with, coquet with, will and will not, chaser-balancer, go halfway, compromise, make a compromise, be thrown off one's balance, stagger like a drunken man, be afraid, let 'I dare not' wait upon 'I would', falter, waver vacillate, change, retract, fluctuate, pendulate, alternate
, keep off and on, play fast and loose, blow hot and cold, shuffle, palter, blink, trim.
, interchange, exchange, counterchange.
correlation, reciprocalness, reciprocity, reciprocation, mutuality, correlation, interdependence, interrelation, connection, link, association, interchange, exchange, barter, reciprocator, reprocitist, reciprocal, mutual, commutual, correlative, reciprocative, interrelated, closely related, alternate
, interchangeable, interdependent, international, complemental, complementary, mutually, mutatis mutandis, vice versa, each other, one another, by turns, reciprocally, happy in our mutual help.
vary, deviate, diverge, alternate
succeed, come after, come on, come next, follow, ensue, step into the shoes of, alternate
, place after, suffix, append, follow, pursue, go after, fly after, attend, beset, dance attendance on, dog, tread in the steps of, tread close upon, be in the wake of, be in the trail of, be in the rear of, go in the wake of, go in the trail of, go in the rear of, follow in the wake of, follow in the trail of, follow in the rear of, follow as a shadow, hang on the skirts of, tread on the heels of, follow on the heels of, camp on the trail.
sequence, coming after, going after, consecution, succession, posteriority, continuation, order of succession, successiveness, paracme, secondariness, subordinancy, afterbirth, afterburden, placenta, secundines, succeeding, v, sequent, subsequent, consequent, sequacious, proximate, next, consecutive, alternate
, amoebean, latter, posterior, after, subsequently, behind, sequence, coming after, (time), following pursuit, follower, attendant, satellite, shadow, dangler, train, subsequent, next, succeeding, following, behind, in the rear, in the train of, in the wake of, after.
be discontinuous, alternate
, intermit, sputter, stop and start, hesitate, discontinue, pause, interrupt, intervene, break, break in upon, break off, interpose, break the thread, snap the thread, disconnect, dissever.
discontinuity, disjunction, anacoluthon, interruption, break, fracture, flaw, fault, crack, cut, gap, solution of continuity, caesura, broken thread, parenthesis, episode, rhapsody, patchwork, intermission, alternation, dropping fire, discontinuous, unsuccessive, broken, interrupted, dicousu, disconnected, unconnected, discrete, disjunctive, fitful, spasmodic, desultory, intermitting, occasional, intermittent, alternate
, recurrent, at intervals, by snatches, by jerks, by skips, by catches, by fits and starts, skippingly, per saltum, longo intervallo, like 'angel visits few and far between'.
recur in regular order, recur in regular succession, return, revolve, come again, come in its turn, come round, come round again, beat, pulsate, alternate
regularity of recurrence, periodicity, intermittence, beat, oscillation, pulse, pulsation, rhythm, alternation, alternateness, alternativeness, alternity, bout, round, revolution, rotation, turn, say, anniversary, jubilee, centenary, catamenia, courses, menses, menstrual flux, rota, cycle, period, stated time, routine, days of the week, Sunday, Monday, months of the year, January, feast, fast, Christmas, Easter, New Year's day, Allhallows, Allhallowmas, All Saints' Day, All Souls', All Souls' Day, Ash Wednesday, bicentennial, birthday, bissextile, Candlemas, Dewali, groundhog day, Halloween, Hallowmas, Lady day, leap year, Midsummer day, Muharram, woodchuck day, St. Swithin's day, natal day, yearbook, yuletide, punctuality, regularity, steadiness, periodic, periodical, serial, recurrent, cyclical, rhythmical, recurring, intermittent, remittent, alternate
, every other, hourly, diurnal, daily, quotidian, tertian, weekly, hebdomadal, hebdomadary, biweekly, fortnightly, bimonthly, catamenial, monthly, menstrual, yearly, annual, biennial, triennial, centennial, secular, paschal, lenten, regular, steady, punctual, regular as clockwork, periodically, at regular intervals, at stated times, at fixed established, at established periods, punctually, de die in diem, from day to day, day by day, by turns, in turn, in rotation, alternately, every other day, off and on, ride and tie, round and round.
fluctuate, vary, waver, flounder, flicker, flitter, flit, flutter, shift, shuffle, shake, totter, tremble, vacillate, wamble, turn and turn about, ring the changes, sway to and fro, shift to and fro, change and change about, waffle, blow with the wind (irresolute), oscillate, vibrate between, two extremes, oscillate between, two extremes, alternate
, have as man phases as the moon.
oscillate, vibrate, librate, alternate
, undulate, wave, rock, swing, pulsate, beat, wag, waggle, nod, bob, courtesy, curtsy, tick, play, wamble, wabble, dangle, swag, fluctuate, dance, curvet, reel, quake, quiver, quaver, shake, flicker, wriggle, roll, toss, pitch, flounder, stagger, totter, move up and down, bob up and down, pass and repass, ebb and flow, come and go, vacillate, teeter, brandish, shake, flourish.