| Main Entry: | |
| Part of Speech: | noun |
| Definition: | top of a room |
| Synonyms: | baldachin, beam, canopy, covert, dome, fan vaulting, groin, highest point, housetop, plafond, planchement, plaster, roof, roofing, timber, topside covering |
| Notes: | a ceiling is the overhead upper surface of a room or an upper limit on what is allowed, while sealing is the act of treating something to make it repel water |
| Antonyms: | floor |