inquire in WordNet English dictionary

1. inquire about
   "I asked about their special today"; "He had to ask directions several times"
   ask  inquire  enquire 
   
2. have a wish or desire to know something
   "He wondered who had built this beautiful church"
   wonder  inquire  enquire 
   
3. conduct an inquiry or investigation of
   "The district attorney's office investigated reports of possible irregularities"; "inquire into the disappearance of the rich old lady"
   investigate  inquire  enquire