free end

English

Noun

free end (plural free ends)

  1. The end of an internal combustion engine that does not drive anything such as a gearbox, transmission or generator.
    • 1958 June, “Main-Line Diesel-Electric Locomotives for the Eastern Region”, in Railway Magazine, page 393:
      The fan is driven by an extension shaft from the free end of the engine.
  2. Used other than figuratively or idiomatically: see free,‎ end.