The term RACE TERMINUS can be solved by the crossword solutions WIRE and TAPE, both of which are four letters long. WIRE is a thin strand of metal, usually made of copper or aluminum, that is used to carry electricity. TAPE is a thin, adhesive material that is used to stick two surfaces together. Both WIRE and TAPE are commonly used in the construction of race tracks, as they are used to mark the boundaries of the track and the finish line, or terminus, of the race.