Synonyms for glass ceiling

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Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

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Palms of all kinds filled it, whose trunks and tops often reached close up to the glass ceiling.

Through the door you enter the garden, with its tiled floor, its glass ceiling, and its low brick retaining walls.

Evergreens are banked against the brick walls, and flat reliefs are hung just under the glass ceiling.