Synonyms to ebb and flow

alternate, 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, 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