agree, associate, associate with, assort with, attend, band together, be in phase, be in time, chaperon, chaperone, chord, coexist, coextend, coincide, combine, companion, concertize, concur, confederate, consociate, consort with, contemporize, convoy, couple with, do, escort, execute, flock together, go along with, go with, hang around with, herd together, interpret, isochronize, keep company with, keep in step, keep pace with, make music, match, perform, play, play by ear, render, run with, squire, symphonize, synchronize, time, usher, wait on