stipulate

Verb

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

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

• 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
    

Related words

• Synonyms: 
  qualify , condition , specify