veil has 9 distinct synonyms spread across 5 of its 6 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. Its one recorded opposite is unveil.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
a garment that covers the head and face
a membranous covering attached to the immature fruiting body of certain mushrooms
the inner membrane of embryos in higher vertebrates (especially when covering the head at birth)
a vestment worn by a priest at High Mass in the Roman Catholic Church; a silk shawl
Synonyms, antonyms and the broader and narrower relations for veil come from Princeton University’s WordNet. Full sources and licences.