Dictionary

1arch

noun \ˈärch\

: a usually curved part of a structure that is over an opening and that supports a wall or other weight above the opening

: the raised area on the bottom of the foot that is formed by a curved section of bones

: something that has a curved shape

Full Definition of ARCH

1
:  a typically curved structural member spanning an opening and serving as a support (as for the wall or other weight above the opening)
2
a :  something resembling an arch in form or function; especially :  either of two vaulted portions of the bony structure of the foot that impart elasticity to it
b :  a curvature having the form of an arch
3
:  archway
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Illustration of ARCH

Origin of ARCH

Middle English arche, from Anglo-French, from Vulgar Latin *arca, from Latin arcus — more at arrow
First Known Use: 14th century

Other Architecture Terms

buttress, casita, cornice, fanlight, garret, lintel, parapet, pilaster, plinth

Rhymes with ARCH

2arch

verb

: to bend into the shape of an arch

Full Definition of ARCH

transitive verb
1
:  to cover or provide with an arch
2
:  to form into an arch
intransitive verb
1
:  to form an arch
2
:  to take an arch-shaped course

First Known Use of ARCH

15th century

3arch

adjective

: having or showing an amused feeling of being superior to or knowing more than other people

Full Definition of ARCH

1
:  principal, chief <your arch opponent>
2
a :  mischievous, saucy
b :  marked by a deliberate and often forced playfulness, irony, or impudence <known for her arch comments> <decided to answer them by being teacherly in a sort of arch, Olympian way — Gerald Early>
arch·ness noun

Origin of ARCH

1arch-
First Known Use: 1547

4arch

abbreviation

Definition of ARCH

Other Architecture Terms

buttress, casita, cornice, fanlight, garret, lintel, parapet, pilaster, plinth

Arch

abbreviation

Definition of ARCH

Archbishop
ARCH Defined for Kids

1arch

noun \ˈärch\

Definition of ARCH for Kids

1
:  a usually curved part of a structure that is over an opening and serves as a support (as for the wall above the opening)
2
:  something that has a curved shape like an arch <the arch of the foot>
arched \ˈärcht\ adjective <an arched doorway>

2arch

verb
archedarch·ing

Definition of ARCH for Kids

1
:  to form or shape into an arch :  curve <The cat arched her back.>
2
:  to cover with an arch <Tree branches arched the narrow road.>

3arch

adjective

Definition of ARCH for Kids

1
:  2chief 2, principal <an arch opponent>
2
:  being clever and mischievous <an arch look>
arch·ly adverb
Medical Dictionary

arch

noun \ˈärch\

Medical Definition of ARCH

1
:  an anatomical structure that resembles an arch in form or function: as a :  either of two vaulted portions of the bony structure of the foot that impart elasticity to it: (1) :  a longitudinal arch supported posteriorly by the basal tuberosity of the calcaneus and anteriorly by the heads of the metatarsal bones (2) :  a transverse arch consisting of the metatarsals and first row of tarsals and resulting from elevation of the central anterior portion of the median longitudinal arch b :  arch of the aorta
2
:  a fingerprint in which all the ridges run from side to side and make no backward turn

Illustration of ARCH

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