| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | directed up |
| Synonyms: | acclivous, anabatic, ascending, ascensional, ascensive, assurgent |
| Antonyms: | downward |
| Main Entry: | overhead |
| Part of Speech: | adjective, adverb |
| Definition: | up above |
| Synonyms: | above, aerial, aloft, atop, hanging, in the sky, on high, over, overhanging, roof, skyward, upper, upward |
| Antonyms: | below, underfoot |
| Main Entry: | upper |
| Part of Speech: | adjective |
| Definition: | above |
| Synonyms: | high, higher, loftier, more elevated, overhead, top, topmost, uppermost, upward |
| Antonyms: | below, lower, under |
| Main Entry: | upright |
| Part of Speech: | adjective |
| Definition: | straight-up |
| Synonyms: | cocked, end on, end up, erect, on end, perpendicular, plumb, raised, sheer, stand-up, standing, steep, straight, upended, upstanding, upward, vertical |
| Antonyms: | fallen, lying, prone |
| Main Entry: | vertical |
| Part of Speech: | adjective |
| Definition: | upright |
| Synonyms: | bolt upright, cocked, erect, on end, perpendicular, plumb, sheer, steep, straight-up, up-and-down, upward |
| Antonyms: | horizontal, prone |
| Main Entry: | up |
| Part of Speech: | preposition |
| Definition: | moving from the earth |
| Synonyms: | heavenward, higher, skyward, uphill, upward |