TENEX
TENEX may refer to:

TENEX (operating system)
Techsnabexport, a Russian company specializing in export of nuclear materials
Tenex, a brand name for the medication guanfacine, a sympatholytic used to treat hypertension, ADHD and Anxiety
Tenex, a brand name for .22 LR ammunition manufactured by Eley Limited and widely used in high level competition such as the ISSF World Cup and Olympic Games
10X, an alternative name for superfine powdered sugar or confectioners sugar
10x, internet slang for "thanks"; see wikt:10x

See also
TENEX C shell