semi


semi (http://definr.com/semi)

     adj 1: (prefix) half or partial; "`semi' is a prefix in such words
            as `semicircular' and `semiannual' and
            `semiconscious'"
     2: (prefix) having some of the characteristics of; "`semi' is a
        prefix meaning similar in the word `semiofficial'"
     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, {articulated
        lorry}]
     3: a trailer having wheels only in the rear; the front is
        supported by the towing vehicle [syn: semitrailer]