Word Study
rooftop
OXFORD DICTIONARY
rooftop, n.
1 the outer surface of a roof.
2 (esp. in pl.) the level of a roof.
1 the outer surface of a roof.
2 (esp. in pl.) the level of a roof.
THESAURUS
rooftop
ceiling, clerestory, eaves, housetop, lantern, overhead, penthouse, plafond, ridgepole, roof, roof garden, roof-deck, roofage, roofing, roofpole, rooftree, shingles, skylight, slates, surface, tiles, top, top floor, top side, topside, topsides, upper side, upsideFor further exploring for "rooftop" in Webster Dictionary Online