require
/ri-ˈkwī(-ə)r/
verb
to claim or ask for by right and authority
request
to call for as suitable or appropriate
demand claim require exact mean to ask or call for something as due or as necessary. demand implies peremptoriness and insistence and often the right to make requests that are to be regarded as commands. claim implies a demand for the delivery or concession of something due as one's own or one's right.