1) An instance of questioning 2) Examination 3) Inquest 4) Inquiring 5) Inquiry 6) Interrogation 7) Investigation 8) Query 9) Question 10) Questioning 1) Enq 2) Experimental 3) Experimentation 4) Heraldry 5) Inquest 6) Inquiry 7) Inspection 8) Investigation 9) Poll 10) Probe 11) Query 12) Question 13) Study 14) Trial 
The production of renewable energy in Scotland is an issue that has come to the fore in technical, economic and political terms during the opening years of the 21st century. The natural resource base is extraordinary by European, and even global standards. In addition to an existing installed capacity of 1.3 Gigawatts (GW) of hydro-electric scheme...
• (n.) See Inquiry.
En·quir'y noun See Inquiry . 
inquiry, enquiry 1. A formal investigation to determine the facts of a case. 2. A request for information. 3. The act of inquiring. 4. A question; a query. 5. A close examination of a matter in a search for information or truth.
Synonym for the grape varieties Folle Blanche (also Enragé, Enrageat Blanc) and Jurançon Noir; see there.
research noun a search for knowledge; `their pottery deserves more research than it has received`