running

UK: ˈrʌnɪŋ | US: ˈrʌnɪŋ

Definition
  1. n. the act of moving swiftly on foot

  2. adj. operating or functioning continuously

  3. v. (present participle of run) moving rapidly on foot

Structure
run <move swiftly>ing <present participle suffix>
Etymology

The word running derives from the Old English rinnan (to flow, run), which evolved into Middle English runnen. The root run retains its core meaning of rapid movement, while the suffix -ing marks it as a present participle or gerund, indicating ongoing action. This combination reflects the dynamic, continuous nature of the activity.

Examples
  1. She goes running every morning to stay fit.

  2. The engine is running smoothly after the repair.

  3. He kept running until he reached the finish line.

  4. The tap has been running for hours—what a waste!

  5. Running a marathon requires months of training.