Third-person singular simple present indicative form of come upon

Alternative form of rely on

Alternative form of improve on

Third-person singular simple present indicative form of call upon

simple past tense and past participle of call upon

present participle of call upon

Alternative form of on the heels of

To regard with passionate affection. / To pay overt attention to, as from sycophancy or intense interest. / (military) To hover around. / (idiomatic) To depend upon.

Alternative form of put upon

Imposed on, taken advantage of, used, taken for granted, or unappreciated.