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Synonyms for Arch (same or very similar meaning)

WordNet sense 1 (a passageway under a curved masonry construction):

WordNet sense 2 ((used of behavior or attitude) characteristic of those who treat others with condescension):
condescending, patronizing, patronising

WordNet sense 3 (of or characteristic of high rank or importance):

WordNet sense 4 (having or showing or requiring special skill):

WordNet sense 5 (form an arch or curve):
arc, curve

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