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horizon (EN)
noun

noun “horizon”

singular horizon, plural horizons or uncountable
  1. the line where the sky seems to meet the earth far away
    As the sun dipped below the horizon, the sky turned a brilliant shade of orange.
  2. the limit of a person's mental perception, experience, or interest
    Reading books from different cultures can expand your intellectual horizons beyond your immediate surroundings.
  3. a distinct layer of soil or rock within the ground
    During the excavation, the team discovered an ancient artifact in the second soil horizon, just below the topsoil layer.