THESAURUS
synchronize
accommodate, accompany, accord, adapt, adjust, adjust to, agree, assimilate, associate, assonate, atone, attune, be harmonious, be in cahoots, be in phase, be in time, be in tune, blend, chart, chime, chord, coact, coadunate, codify, coexist, coextend, coincide, collaborate, collude, combine, concur, conjoin, connive, conspire, contemporize, cooperate, coordinate, correspond, cut to, equalize, fit, fix, gear to, happen together, harmonize, homologate, homologize, isochronize, join, keep in step, keep pace with, key to, make plumb, make uniform, match, measure, melodize, methodize, musicalize, normalize, organize, plan, proportion, put in tune, rationalize, reconcile, rectify, regularize, regulate, right, routinize, set, set right, settle, similarize, sound in tune, sound together, standardize, symphonize, sync, synergize, systematize, tailor, time, trim to, true, true up, tune, tune up, unite
ROGET THESAURUS
synchronize
Accompaniment
VB
accompany, coexist, attend, hang on, wait on, go hand in hand with,
synchronize, bear company, keep company, row in the same boat, bring in its train, associate with, couple with.
Synchronism
VB
coexist, concur, accompany, go hand in hand, keep pace with,
synchronize.