harmonize

Universal Words (BrE also harmonise) verb 1 [V] ~ (with sth) (written) if two or more things harmonize with each other or one thing harmonizes with the other, the things go well together and produce an attractive result: The new building does not harmonize with its surroundings. 2 [VN] (written) to make systems or rules similar in different countries or organizations: the need to harmonize tax levels across the European Union 3 [V] ~ (with sb/sth) to play or sing music that combines with the main tune to make a pleasing sound: Sally sang the melody while I harmonized. * The singers harmonize well. * to harmonize with the lead singer harmonization, harmonisation noun [U,C]