questioner

from WordNet (r) 3.0 (2006)

questioner
    n 1: someone who asks a question [syn: {inquirer}, {enquirer},
         {questioner}, {querier}, {asker}]

from The Collaborative International Dictionary of English v.0.48

Questioner \Ques"tion*er\, n.
   One who asks questions; an inquirer. "Little time for idle
   questioners." --Tennyson.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

41 Moby Thesaurus words for "questioner":
      Paul Pry, Peeping Tom, asker, busybody, catechist,
      cross-interrogator, cross-questioner, detective, eavesdropper,
      examiner, gossip, inquirer, inquisitionist, inquisitive,
      inquisitor, interlocutor, interpellator, interrogator,
      interrogatrix, interviewer, nosy Parker, opinion-sampler, poller,
      pollster, prober, pry, querier, querist, questionist, quidnunc,
      quizzer, rubberneck, rubbernecker, sampler, scopophiliac,
      secret agent, sightseer, snoop, snooper, voyeur, yenta