What is another word for "covering"?

Roget's Thesaurus (1911) lists these synonyms for "covering": about, air, around, bed, belle, board, circumjacence, coat, coating, course, cover, cut, dess, disc, discoid, disk, eccentric, eccentricity, escarpment, eschar, etoile, excentric, excentricity, exterior, exteriority, exteriorly, external, externally, extra, extrados, extralimitary, extramundane, extramural, extrinsic, face, facet, fill, filling, film, flag.