Example: Subjects and verbs must always agree in English.
source: wordnet30
be agreeable or suitable(verb.possession)
Example: White wine doesn't agree with me.
source: wordnet30
achieve harmony of opinion, feeling, or purpose(verb.communication)
Example: No two of my colleagues would agree on whom to elect chairman.
source: wordnet30
To harmonize in opinion, statement, or action; to be in unison or concord; to be or become united or consistent; to concur; as, all parties agree in the expediency of the law.(verb)
source: webster1913
To make harmonious; to reconcile or make friends.(verb)