凹

Derived characters

 * 垇 㾎 兕 𠚆 𠱃 𪵲 𧰽 𧱃 𤉡 𩡿

Glyph origin
.

Definitions

 * 1) concave; hollow; sunken; dented
 * 2) to cave in; to be sunken; to dent; to be concave
 * 3) indentation; depression
 * 1) to cave in; to be sunken; to dent; to be concave
 * 2) indentation; depression
 * 1) indentation; depression
 * 1) indentation; depression

Definitions

 * 1)  swollen bumps on the skin

Etymology 1
→ →  →  →

From. Compare modern 🇨🇬 reading āo, 🇨🇬 au.

Affix

 * 1) concave

Usage notes
The character 凹 with the reading ō is only used in compounds, and never in isolation.

Compounds

 * : a reflex angle
 * : a die or other three-dimensional shape having a concave cross-section
 * : a concave shape
 * : concavity
 * : a polygon with at least one internal reflex angle
 * : an area where the ground is noticeable lower than the surrounding area
 * : bumpiness, unevenness; inequality, variation, ups and downs
 * : a style of Sui-Dynasty wall painting using trompe l'œil techniques to look three-dimensional
 * : a concavo-convex lens
 * : an intaglio
 * : intaglio printing
 * : a concave surface
 * : a concave mirror
 * : quasiconcavity
 * : bumpiness, unevenness; inequality, variation, ups and downs
 * : an uneven scar
 * : a convexo-concave lens

Etymology 2
. Sound similarities might suggest a connection to words related to or deep, such as , , , , ; more at. Alternately, these broad similarities might be pure coincidence.

Noun

 * 1) an area with sides higher than the center: an indentation, a depression, a dip, a divot, a hole
 * 2)  female genitalia, the vagina

Derived terms

 * , : hollowed out, indented; of low status, mean
 * , : hollowed out, indented, depressed (physically), low
 * , : to become hollowed out or indented; to hollow out or indent something; to sink inwardly, to collapse inwardly; to fall upon hard times, to become poor
 * ,, , : see below
 * , : to become hollowed out or indented; to squat for a while, to sink into a crouch
 * , : to make something sink or collapse inwardly; to dent something; to make something into a hollowed out shape
 * , : hollowed out, indented, depressed (physically), low
 * , : in a hollowed out or indented way
 * , : a hollow, a dip, a depression or low spot in the ground
 * , : a paddy or wet field in a low place
 * ,, , : deep-set eyes, sunken eyes
 * , : a low place where water tends to gather
 * , : a dimple, particularly one from smiling
 * , : a surname
 * , : a dip in the floor or ground
 * , ;, : a cupped hand; a rice ball; eating rice by hand; a one-night stand, a fling or short-term romance
 * , : see below
 * : the hollow of the nape of the neck; a hairstyle for infants in the Edo period, shaving the whole head except for a small area on the nape of the neck
 * , : sunken eyes; a person with sunken or deep-set eyes

Etymology 3
Noun stem of verb, itself a compound of.

Noun

 * 1) a pit, a hollow, a cavity, a depression, a dent

Usage notes
The or  spelling with the okurigana み is more common when used as a standalone term. The spelling without the okurigana is more common in compounds.

Derived terms

 * , : an artifact from the Jōmon period, consisting of a flat stone with one to several indentations, of uncertain utility but thought to be used to help start fires

Etymology 4
Compound of.

Noun

 * 1) a sunken center
 * 2) a place or object with a sunken center

Usage notes
The spelling is more common.

Etymology 5
Noun stem of verb, itself an abbreviated compound of.

Noun

 * 1) a pit, a hollow, a cavity, a depression, a dent
 * 2) a mistake, and error
 * 3) a moment of weakness or confusion, being at a loss

Usage notes
The spelling is more common.

Synonyms

 * ,, , (also see above)

Etymology 6
. Possibly onomatopoeic from the sound of a wheel bouncing in a rut or pothole, or from the sound of something hollow when tapped. Compare adverb.

Alternately, may be compound of. Compare, likely a compound of +.

Noun

 * 1) an indentation, a dip or divot, a hollow, a dent in a surface

Derived terms

 * : unevenly, bumpily, pitted, dented (in multiple places), full of holes; hollowly
 * : a hole, a rut, a pothole
 * : unevenness, bumpiness, jaggedness; inequality, disparity