call on

v. visit; call upon; ask a person for an answer in class (as in "The teacher always calls on me in class because she thinks I always know the answer")

Verb
1. have recourse to or make an appeal or request for help or information to; "She called on her Representative to help her"; "She turned to her relatives for help"
(synonym) turn
(hypernym) appeal, invoke

ask, request I may call on you to speak at the meeting. Will you speak to us?

Synonyms and related words:
adjure, advocate, appeal, appeal to, apply to, beg, beseech, bid, blandish, cajole, call for help, call the signals, call upon, charge, circulate a petition, clamor for, coax, command, commission, conjure, crave, cry for, cry on, cry to, declare, decree, dictate, direct, drop in, enjoin, entreat, exhort, give an order, give the word, high-pressure, impetrate, implore, importune, imprecate, insist, insist upon, instruct, invoke, issue a command, issue a writ, jawbone, kneel to, lobby, look in, mandate, memorialize, nag, obtest, ordain, order, order about, pay a visit, petition, plead, plead for, plead with, pray, prefer a petition, press, pressure, proclaim, promulgate, pronounce, push, recommend, rule, run in, run to, say the word, see, sign a petition, soft-soap, stop by, stop off, stop over, sue, supplicate, sweet-talk, urge, visit, wheedle, work on
  

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