1. (v. i.) To agree in action, adaptation, or effect on the mind; to agree in sense or purport; as, the parts of a mechanism harmonize.

2. (v. i.) To be in peace and friendship, as individuals, families, or public organizations.

3. (v. i.) To agree in vocal or musical effect; to form a concord; as, the tones harmonize perfectly.

4. (v. t.) To adjust in fit proportions; to cause to agree; to show the agreement of; to reconcile the apparent contradiction of.

5. (v. t.) To accompany with harmony; to provide with parts, as an air, or melody.

accommodate accommodate with accord act in concert act together adapt adapt to adjust adjust to affiliate agree agree with ally amalgamate answer to arrange arrange matters array assent assimilate assimilate to associate assonate assort with atone attune balance band band together be consistent be guided by be harmonious be in cahoots be in league be in tune be of one be uniform with bend blend bring to terms bring together chart check chime chime in with chord club together coact coadunate coalesce codify cohere coincide collaborate collude combine comply comply with compose compromise concert concord concur confederate conform conform with conjoin connive consist with consolidate conspire cool off cooperate coordinate correct correlate correspond cotton to cut to damp deploy discipline dispose do business with dovetail empathize equalize equilibrize even even up fall in together fall in with federate fit fit in fit together fix fix up flatten follow form fuse gear to get along get along with get heads together get on with get together go go by go partners go together go with grade hang together happen together harmonize with heal the breach hierarchize hit hold together homogenize homologate homologize hook up identify with instrument instrumentate integrate interchange interlock intersect jibe join join in join together keep together key to lay out league league together level line up lock make an adaptation make common cause make conform make plumb make uniform marshal match measure mediate meet melodize merge methodize mold musicalize normalize observe orchestrate order organize overlap pacify parallel partner patch things up plan play ball proportion proportionate pull together put heads together put in tune put to music quiet rank rationalize reciprocate reconcile rectify register register with regularize regulate relate resolve respond to restore harmony reunite right routinize rub off corners score set set right set to music set up settle settle differences shape similarize sing in chorus smooth smooth it over sort with sound in tune sound together square square with stabilize stand together standardize stereotype straighten structure suit symmetrize sympathize symphonize sync synchronize synergize synthesize systematize tailor tally tally with team up throw in together tie in tie up tranquilize transcribe transpose trim to TRUE true up tune tune up understand one another uniformize unify unite unite efforts weave peace between work together write yield