· the line at which the sky and Earth appear to meet
Synonym(s): apparent_horizon, visible_horizon, sensible_horizon, skyline
Hypernym(s): line
· the range of interest or activity that can be anticipated; "It is beyond the horizon of present knowledge"
Hypernym(s): scope, range, reach, orbit, compass, ambit
· a specific layer or stratum of soil or subsoil in a vertical cross section of land
Hypernym(s): stratum
· the great circle on the celestial sphere whose plane passes through the sensible horizon and the center of the Earth
Synonym(s): celestial_horizon
Hypernym(s): great_circle