hang upon

Verb

 * 1) To regard with passionate affection.
 * 2) To pay overt attention to, as from sycophancy or intense interest.
 * 3)  To hover around.
 * 4)  To depend upon.
 * Everything hangs upon whether the boss agrees.
 * 1)  To depend upon.
 * Everything hangs upon whether the boss agrees.
 * Everything hangs upon whether the boss agrees.