Meaning of stipulate

(verb) specify as a condition or requirement in a contract or agreement; make an express demand or provision in an agreement; "The will stipulates that she can live in the house for the rest of her life"; "The contract stipulates the dates of the payments"

give a guarantee or promise of; "They stipulated to release all the prisoners"

make an oral contract or agreement in the verbal form of question and answer that is necessary to give it legal force