horizon

• the line at which the sky and Earth appear to meet
• the great circle on the celestial sphere whose plane passes through the sensible horizon and the center of the Earth
• the range of interest or activity that can be anticipated
• a specific layer or stratum of soil or subsoil in a vertical cross section of land
• The circle which bounds that part of the earth´s surface visible to a spectator from a given point
• A plane passing through the eye of the spectator and at right angles to the vertical at a given place
• A plane parallel to the sensible horizon of a place, and passing through the earth´s center
• The unbroken line separating sky and water, as seen by an eye at a given elevation, no land being visible
• The epoch or time during which a deposit was made
• The chief horizontal line in a picture of any sort, which determines in the picture the height of the eye of the spectator
• Residential area (city, town, village) in the United States of America (USA) in Utah

Report error with a word Suggest a new definition

You can also check definition for horizon on wikipedia or google (link opens in new window)