require

To have as a requisite or necessity; need or depend on.

To stipulate as obligatory by authority.

To demand as obligatory or appropriate.

To impose an obligation on; compel.

To search for; seek.

To ask for as a favor; request.

To ask or claim, as of right and by authority; demand; insist on having; exact.

To ask or order to do something; call on.

To have need or necessity for; render necessary or indispensable; demand; need; want.