Noun el has 2 senses
  1. elevation, EL, altitude, ALT - angular distance above the horizon (especially of a celestial object)
    --1 is a kind of angular position
  2. elevated railway, elevated railroad, el, overhead railway - an electric elevated railway
    --2 is a kind of railway, railroad, railroad line, railway line, railway system
    --2 has particulars: roller coaster, big dipper, chute-the-chute
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