Horizon (band)
WordNet
noun
(1) The range of interest or activity that can be anticipated
"It is beyond the horizon of present knowledge"
(2) The line at which the sky and Earth appear to meet
(3) The great circle on the celestial sphere whose plane passes through the sensible horizon and the center of the Earth
(4) A specific layer or stratum of soil or subsoil in a vertical cross section of land