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tech  (techs plural )A tech is the same as a  technical college. 
 (BRIT) 
INFORMAL  n-count 
high-tech  , high tech, hi tech 
High-tech activities or equipment involve or result from the use of high technology.  adj 
...the latest high-tech medical gadgetry.  
hi tech 
  high-tech 
low-tech  
Low-tech machines or systems are ones that do not use modern or sophisticated technology.  adj 
 (Antonym: hi-tech)  
...a simple form of low-tech electric propulsion.