This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A structure, especially one of masonry, forming the curved, pointed, or flat upper edge of an open space and supporting the weight above it, as in a bridge or doorway.

n. A structure, such as a freestanding monument, shaped like an inverted U.

n. A curve with the ends down and the middle up: the arch of a raised eyebrow.

n. Anatomy An organ or structure having a curved or bowlike appearance, especially either of two arched sections of the bony structure of the foot.

v. To provide with an arch: arch a passageway.

v. To cause to form an arch or similar curve.

v. To bend backward: The dancers alternately arched and hunched their backs.

v. To span: "the rude bridge that arched the flood” ( Ralph Waldo Emerson).

verb-intransitive. To form an arch or archlike curve: The high fly ball arched toward the stands.

adj. Chief; principal: their arch foe.

adj. Mischievous; roguish: an arch glance.

n. An inverted U shape.

n. An arch-shaped arrangement of trapezoidal stones, designed to redistribute downward force outward.

n. An architectural element having the shape of an arch

n. An arc; a part of a curve.

v. To form into an arch shape

adj. ​ Knowing, clever, mischievous.

adj. Principal; primary.

n. Any part of a curved line.

n.

n. Usually a curved member made up of separate wedge-shaped solids, with the joints between them disposed in the direction of the radii of the curve; used to support the wall or other weight above an opening. In this sense arches are segmental, round (i. e., semicircular), or pointed.

n. A flat arch is a member constructed of stones cut into wedges or other shapes so as to support each other without rising in a curve.

n. Any place covered by an arch; an archway.

n. Any curvature in the form of an arch.

v. To cover with an arch or arches.

v. To form or bend into the shape of an arch.

verb-intransitive. To form into an arch; to curve.

adj. Chief; eminent; greatest; principal.

adj. Cunning or sly; sportively mischievous; roguish.

n. A chief.

n. 1. In geometry, any part of the circumference of a circle or other curve; an arc. See arc

n. In architecture, a structure built of separate and inelastic blocks, assembled on a curved line in such a way as to retain their position when the structure is supported extraneously only at its two extremities.

n. Any place covered with an arch or a vault like an arch: as, to pass through the arch of a bridge.

n. Any curvature in the form of an arch: as, the arch of the aorta; the arch of an eyebrow, of the foot, of the heavens, etc.

n. In mining, a portion of a lode left standing, either as being too poor for profitable working or because it is needed to support the adjacent rock.

n. The roofing of the fire-chamber of a furnace, as a reverberatory or a glass-furnace; hence, sometimes, the fire-chamber itself.

To cover with a vault, or span with an arch.

To throw into the shape of an arch or vault; curve: as, the horse arches his neck.

To form an arch or arches: as, the sky arches overhead.

n. A box or chest; in plural, archives.

n. The ark of Noah.

n. The ark of the covenant.

Chief; principal; preëminent. See arch-.

Cunning; sly; shrewd; waggish; mischievous for sport; roguish: now commonly used of facial expression: as, “so arch a leer,”

n. A chief; a leader.

n. Chief; principal: a prefix much used in composition with words both of native and of foreign origin. See arch.

v. form an arch or curve

adj. naughtily or annoyingly playful

n. a curved bony structure supporting or enclosing organs (especially the inner sides of the feet)

n. (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it

adj. (used of behavior or attitude) characteristic of those who treat others with condescension

adj. expert in skulduggery

n. a passageway under a curved masonry construction

n. a curved shape in the vertical plane that spans an opening

"MISCELLANEOUS WORDS. adobe _ado'ba_ algebra not _bra_ alien _alyen_, not _alien_ ameliorate _amelyorate_ antarctic _antarktik_ anti not _anti_ archangel _arkangel_ archbishop _arch_, not _ark_ arch fiend _arch_, not _ark_ architect _arkitect_ awkward _awkward_, not _ard_"

playful    superior    skilled   

arched    arches    arching    archs   

entry    entranceway    entrée    entrance    entryway    curve    curved shape   

straight arch    court of arches    subocular arch    visceral arches    braced arch    compound arch    laminated arch    arch of discharge    backing of an arch    parahyal arch   

arc   

arched    arching   

archway    curve    chief    eminent    greatest    principal    roguish    covert    fornix    ogive   

March    demarche    larch    march    parch    starch   

pillar    tower    curve    dome    roof    square    vault    staircase    building    stone