horizons

Noun

• the line at which the sky and Earth appear to meet
• 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 great circle on the celestial sphere whose plane passes through the sensible horizon and the center of the Earth
• plural of horizon

Synonyms

apparent horizon, celestial horizon, horizon, purview, sensible horizon, skyline, view, visible horizon