[noun] [U] [formal] - agreement and peace between countries and peoplenations living in concordHis speech did nothing for racial concord.Compare discord (DISAGREEMENT).(specialized) Concord is when the words in a sentence match each other grammatically, for example when the verb is plural because the subject of the sentence is plural.
CONCORD
Meaning of CONCORD in English
Cambridge English vocab. Кембриджский английский словарь. 2012