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1

arch

play
noun \ˈärch\

Simple Definition of arch

  • : 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

Source: Merriam-Webster's Learner's Dictionary

Full Definition of arch

  1. 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. 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. 3 :  archway

Examples of arch in a sentence

  1. There was a slight arch to her eyebrows.

  2. an arch in the cat's back



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

Rhymes with arch


2

arch

verb

Simple Definition of arch

  • : to bend into the shape of an arch

Source: Merriam-Webster's Learner's Dictionary

Full Definition of arch

  1. transitive verb
  2. 1 :  to cover or provide with an arch

  3. 2 :  to form into an arch

  4. intransitive verb
  5. 1 :  to form an arch

  6. 2 :  to take an arch-shaped course

Examples of arch in a sentence

  1. The cat arched its back.

  2. She arched her eyebrows in surprise.

  3. A tree arches over the road.

  4. She arched backward to begin the exercise.



15th Century

First Known Use of arch

15th century


3

arch

adjective

Simple Definition of arch

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

Source: Merriam-Webster's Learner's Dictionary

Full Definition of arch

  1. 1 :  principal, chief <your arch opponent>

  2. 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>

archness noun

Examples of arch in a sentence

  1. a politician known for his arch humor

  2. The novel is never mocking or arch in its tone.



Did You Know?

As a prefix, arch- appears in a number of titles referring to positions of superiority, such as archduke and archbishop. Ultimately deriving (via Latin and French) from the Greek verb archein ("to begin, rule"), it can also mean "chief " (as in archnemesis) or "extreme" (as in archconservative). In the 17th century, as the "extreme" sense of arch came to be used frequently to describe rogues, knaves, and other clever and mischievous sorts, arch eventually settled into use as an adjective to describe one with impish or playful qualities. Use of the word has since extended to describe actions or remarks meant to be ironic, cutting, or condescending.

Origin of arch

1arch-


First Known Use: 1547


4

arch

abbreviation

Definition of arch



Other Architecture Terms


Arch

abbreviation

Definition of Arch

  1. Archbishop




1

arch-

prefix

Simple Definition of arch-

  • : main or chief

  • : extreme

Source: Merriam-Webster's Learner's Dictionary

Full Definition of arch-

  1. 1 :  chief :  principal <archfiend>

  2. 2 :  extreme :  most fully embodying the qualities of the kind <archconservative>

Origin of arch-

Middle English arche-, arch-, from Old English & Anglo-French; Old English arce-, from Late Latin arch- & Latin archi-; Anglo-French arch-, from Late Latin arch- & Latin archi-, from Greek arch-, archi-, from archein to begin, rule; akin to Greek archē beginning, rule, archos ruler


2

arch-

Definition of arch-

  1. see archi-




1

-arch

noun combining form

Definition of -arch

  1. :  ruler :  leader <matriarch>



Origin of -arch

Middle English -arche, from Anglo-French & Late Latin & Latin; Anglo-French -arche, from Late Latin -archa, from Latin -arches, -archus, from Greek -archēs, -archos, from archein


2

-arch

adjective combining form

Definition of -arch

  1. :  having (such) a point or (so many) points of origin <endarch>



Origin of -arch

probably from German, from Greek archē beginning



ARCH Defined for Kids

1

arch

play
noun \ˈärch\

Definition of arch for Students

  1. 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. 2 :  something that has a curved shape like an arch <the arch of the foot>

arched \ˈärcht\ adjective <an arched doorway>



2

arch

play
verb

Definition of arch for Students

archedarching

  1. 1 :  to form or shape into an arch :  curve <The cat arched her back.>

  2. 2 :  to cover with an arch <Tree branches arched the narrow road.>




3

arch

play
adjective

Definition of arch for Students

  1. 1 :  2chief 2, principal <an arch opponent>

  2. 2 :  being clever and mischievous <an arch look>

archly adverb



Medical Dictionary

arch

play
noun \ˈärch\

Medical Definition of arch

  1. 1:  an anatomical structure that resembles an arch in form or function: asa:  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 archb:  arch of the aorta

  2. 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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