Source : WordNet®

semi
     n 1: one of the two competitions in the next to the last round of
          an elimination tournament [syn: {semifinal}]
     2: a truck consisting of a tractor and trailer together [syn: {trailer
        truck}, {tractor trailer}, {trucking rig}, {rig}, {articulated
        lorry}]
     3: a trailer having wheels only in the rear; the front is
        supported by the towing vehicle [syn: {semitrailer}]

Source : Free On-Line Dictionary of Computing

semi
     
        /se'mee/ or /se'mi:/ A spoken abbreviation for semicolon.
     
        "Commands to {grind} are prefixed by semi semi star" means
        that the prefix is ";;*", not 1/4 of a star.
     
        [{Jargon File}]
     
        (1995-01-31)