Source : Webster's Revised Unabridged Dictionary (1913)

Enquiry \En*quir"y\, n.
   See {Inquiry}.

Source : WordNet®

enquiry
     n 1: an instance of questioning; "there was a question about my
          training"; "we made inquiries of all those who were
          present" [syn: {question}, {inquiry}, {query}, {interrogation}]
          [ant: {answer}]
     2: a search for knowledge; "their pottery deserves more
        research than it has received" [syn: {inquiry}, {research}]
     3: a systematic investigation of a matter of public interest
        [syn: {inquiry}]