The word “agree” means to have the same opinion or to be in harmony with someone or something. Some synonyms for “agree” are “consent”, “approve”, “accede”, and “concur”.
“Consent” implies giving permission or assent. For example, “She consented to his request.” This shows that she agreed to what was asked of her.
“Approve” suggests formal or official agreement. “The committee approved the plan.” Here, it means that the plan was found to be acceptable.
“Accede” often implies reluctant agreement or yielding. “He finally acceded to their demands.” This indicates that after some hesitation or pressure, he agreed.
“Concur” emphasizes agreement in opinion or judgment. “The experts concurred on the diagnosis.” This shows that they all had the same opinion.