WordRel.com

• have a wish or desire to know something

  synonym	enquirewonder
  derivation	inquisitiveinquisitive
  exemplifies	American English
  hypernym	queryquestion
  hyponym	request

• address a question to and expect an answer from

  synonym	askenquire
  derivation	inquirerinquiringinquiry
  hypernym	communicateintercommunicate
  hyponym	confer withconsultinterrogatepryqueryquestionquestion
  similar	ask

• conduct an inquiry or investigation of

  synonym	enquireinvestigate
  derivation	inquiringinquiryinquisitive
  hypernym	examineprobe
  hyponym	spy
  is entailed by	sleuthsnoopspystag