Present tense third person singular of harmonize; brings into harmony or agreement, or adds harmony to music.
From harmonize + -s third person singular marker. Harmonize comes from harmony (fitting together) + -ize (to make). The -s marks the present tense third person form.
The verb 'harmonize' is interesting because it can be completely passive or active—a color can harmonize with your outfit without trying, but a person must actively choose to harmonize their viewpoints with someone else's. The same word describes both accidental matching and intentional agreement.
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