1. (n.) The just adaptation of parts to each other, in any system or combination of things, or in things, or things intended to form a connected whole; such an agreement between the different parts of a design or composition as to produce unity of effect; as, the harmony of the universe.

2. (n.) Concord or agreement in facts, opinions, manners, interests, etc.; good correspondence; peace and friendship; as, good citizens live in harmony.

3. (n.) A literary work which brings together or arranges systematically parallel passages of historians respecting the same events, and shows their agreement or consistency; as, a harmony of the Gospels.

4. (n.) A succession of chords according to the rules of progression and modulation.

5. (n.) The science which treats of their construction and progression.

6. (n.) See Harmonic suture, under Harmonic.

acclamation accommodation accord accordance acquiescence adaptation adaption adjustment affinity agape agreement agreement of all amity an in arrangement array articulation assent atlas attune attunement balance beauty bilateral symmetry bipartisanship bliss bonds of harmony brotherly love calendar caritas casebook catalog catalogue raisonne cement of friendship cessation of combat charity chime chiming chorus city directory classified catalog closeness coaction coadjuvancy coadministration coagency coaptation cochairmanship codirectorship coherence coincidence collaboration collaborativeness collectivism collusion commensalism common assent common consent common effort common enterprise communalism communion communism communitarianism community community of interests compatibility compliance complicity concatenation concentus concert concinnity concord concordance concurrence conformance conformation conformation other-direction conformity congeniality congruence congruency congruity consensus consensus gentium consensus of opinion consensus omnium consent consentaneity consistency consonance consonancy consort conventionality cooperation cooperativeness correspondence cyclopedia deployment diapason diatesseron dictionary catalog dignity directory disposal disposition duet duumvirate dynamic symmetry ecumenicalism ecumenicism ecumenism elegance empathy encyclopedia equality equilibrium equivalence esprit esprit de corps euphony eurythmics eurythmy evenness exemption from hostilities favor favorable regard feeling of identity fellow feeling fellowship finish fitness flexibility formation freedom from war frictionlessness friendly relations gazetteer general acclamation general agreement general consent general voice good graces good terms good understanding good vibes good vibrations goodwill grace happy family harmonics heavy harmony homophony identity index integration integrity intersection joining of forces joint effort joint operation keeping kinship layout liberty in tranquillity like-mindedness line lineup love malleability marshaling mass action measure measuredness meeting of minds mellifluousness melodics melodiousness melody monochord monody morale multilateral symmetry music music theory musicality musicography musicology mutual assistance mutual regard mutual understanding mutualism mutuality obedience observance octet one accord one voice oneness order orderedness orderliness organization orthodoxy overlap parallelism pax peace peacetime phone book pliancy polyglot polyphony pooling pooling of resources proportion proportionality pulling together quartet quiet quietude quintet rapport rapprochement reciprocity reconcilement reconciliation record book reference book regard regularity respect rhythm rhythmics routine same mind self-consistency septet setup sextet shapeliness sharing single voice solidarity sonority source book spirituality strictness structure studbook sweetness symbiosis symmetricalness