Agree meaning : To harmonize in opinion, statement, or action; to be in unison or concord; to be or become united or consistent; to concur. To yield assent; to accede;—followed by to. To yield assent to; to approve. To make a stipulation by way of settling differences or determining a price; to exchange promises; to come to terms or to a common resolve; to promise. To be conformable; to resemble; to coincide; to correspond. (now always with with) To suit or be adapted in its effects; to do well. (grammar) To correspond to (another word) in a grammatical category, such as gender, number, case, or person. To consent to a contract or to an element of a contract.