English to English

noun (n)

• angular distance above the horizon (especially of a celestial object)(noun.linkdef)

  Synonym:
  alt, altitude, elevation
  

  source: wordnet30
• a railway that is powered by electricity and that runs on a track that is raised above the street level(noun.artifact)

  Synonym:
  elevated, elevated railroad, elevated railway, overhead railway
  

  source: wordnet30