Arch
An arch is a curved structure that spans an elevated space and may or may not support the weight above it.
Arches may be synonymous with vaults, but a vault may be distinguished as a continuous arch forming a roof. Arches appeared as early as the 2nd millennium BC in Mesopotamian brick architecture, and their systematic use started with the ancient Romans, who were the first to apply the technique to a wide range of structures.
Arch (noun)
An inverted U shape.
Arch (noun)
An arch-shaped arrangement of trapezoidal stones, designed to redistribute downward force outward.
Arch (noun)
An architectural element having the shape of an arch
Arch (noun)
Any place covered by an arch; an archway.
“to pass into the arch of a bridge”
Arch (noun)
An arc; a part of a curve.
Arch (noun)
A natural arch-shaped opening in a rock mass.
Arch (noun)
Curved part of the bottom of a foot.
Arch (noun)
A chief.
Arch (verb)
To form into an arch shape
“The cat arched its back”
Arch (verb)
To cover with an arch or arches.
Arch (adjective)
Knowing, clever, mischievous.
“I attempted to hide my emotions, but an arch remark escaped my lips.”
Arch (adjective)
Principal; primary.
Arc (noun)
That part of a circle which a heavenly body appears to pass through as it moves above and below the horizon. from 14th c.
Arc (noun)
A continuous part of the circumference of a circle (circular arc) or of another curve. from 16th c.
Arc (noun)
A curve, in general. from 17th c.
Arc (noun)
A band contained within parallel curves, or something of that shape. from 17th c.
Arc (noun)
A flow of current across an insulating medium; especially a hot, luminous discharge between either two electrodes or as lightning. from 19th c.
Arc (noun)
A story arc. from 20th c.
Arc (noun)
A continuous mapping from a real interval (typically [0, 1]) into a space.
Arc (noun)
A directed edge.
Arc (noun)
The three-point line.
Arc (verb)
To move following a curved path.
Arc (verb)
To shape into an arc; to hold in the form of an arc.
Arc (verb)
To form an electrical arc.