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English definition of “semi”

semi

noun [C]  /ˈsem·i, -ɑɪ/ (plural semis) us  

semi noun [C] (TRUCK)

infml (also semitrailer) a large truck with a separate trailer (= vehicle without an engine) for carrying freight, or such a trailer itself: The semi screeched to a halt.

semi noun [C] (COMPETITION)

short form ofsemifinal
(Definition of semi noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
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