Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

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)
Focus on the pronunciation of arch

Definitions of “arch” in other dictionaries

Word of the Day

closeness

the quality of knowing someone very well, liking them a lot, and wanting to spend a lot of time together

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More