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3. railway

noun. ['ˈreɪlˌweɪ'] a line of track providing a runway for wheels.

Etymology

  • railway (English)
  • rail (English)
  • hrægl (Old English (ca. 450-1100))
  • way (English)
  • weg (Old English (ca. 450-1100))

6. system

noun. ['ˈsɪstəm'] (physical chemistry) a sample of matter in which substances in different phases are in equilibrium.

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