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English definition of “arch”

arch

noun [C]    /ɑrtʃ/
a structure consisting of a curved top on two supports which holds the weight of something above it, or something decorative that has this shape : Two rows of arches support the roof of the building . The arch of your foot is the higher , curved part on the bottom . arch    /ɑrtʃ/ verb [I/T] [T] Cats often arch their backs when they stretch . arched    /ɑrtʃt/ adjective Arched bookcases filled each end of the room .
(Definition of arch noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
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