10-Letter Words Containing: S,O,W,A,N,S,_,_

• intended to test a new system under operating conditions and to familiarize the operators with the system

• initial adjustments to improve the functioning or the efficiency and to bring to a more satisfactory state

• a very thorough search of a person or a place

• extortion of money (as by blackmail)

• Downward air turbulence caused by a propeller or jet, but especially by helicopter blades

• The downward motion of air as a result of eddies behind a wing or chimney, etc.

• a crystal of snow

• white Arctic bunting

• a landing of a spacecraft in the sea at the end of a space flight

• a setting in which something can be displayed to best effect

• a glass container used to store and display items in a shop or museum or home

• poisonous Eurasian perennial herb with broad rounded leaves and yellow flowers and fibrous rootstock