| Main Entry: | day |
| Part of Speech: | noun |
| Definition: | light part of every 24 hours |
Synonyms: |
astronomical day, bright, dawn-to-dark, daylight, daytime, diurnal course, early bright, light, light of day, mean solar day, nautical day, sidereal day, sunlight, sunrise-to-sunset, sunshine, working day |
Antonyms: |
evening, night |
| Main Entry: | sidereal time |
| Part of Speech: | noun |
| Definition: | time measured by stars |
Synonyms: |
sidereal day, sidereal month, sidereal year |