Noun enquiry has 3 senses
  1. question, inquiry, enquiry, query, interrogation - an instance of questioning; "there was a question about my training"; "we made inquiries of all those who were present"
    --1 is a kind of questioning, inquiring
    Derived form: verb enquire1
  2. inquiry, enquiry, research - a search for knowledge; "their pottery deserves more research than it has received"
    --2 is a kind of problem solving
    --2 has particulars:
     nature study; experiment, experimentation; empirical research; probe, investigation; poll, opinion poll, public opinion poll, canvass; heraldry
  3. inquiry, enquiry - a systematic investigation of a matter of public interest
    --3 is a kind of investigation, investigating
    --3 has particulars: means test; inquest
    Derived form: verb enquire2