lengthening

Etymology

From lengthen + -ing.

noun

  1. The process of making or growing longer.
    This enabled an additional 15-20 containers to be carried per train, giving a 20% productivity gain, and was partly enabled by Network Rail completing the lengthening of loops on the route northwards from Southampton via Banbury. September 22 2021, “National Rail Awards 2021: Train Lengthening”, in RAIL, number 940, page 56
  2. (phonology) a type of sound change when a sound (especially a vowel) lengthens

verb

  1. present participle and gerund of lengthen

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