10-Letter Words Containing: S,O,N,D,E,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)

• an onyx characterized by parallel layers of sard and a different colored mineral

• 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 resonating chamber in a musical instrument (as the body of a violin)

• a fictitious name used when the person performs a particular social role