壁

fourth wall (in fiction)

Idiomatic expression; Buddhism

precipitous cliff of great height, metaphor for absolute nature of Buddhist truth

punching the wall

matching-halves smartphone wallpapers (for lovers); paired wallpapers

cheese mite

Proverb

the line between good and evil is no wider than a razor's edge

Medicine

retropharyngeal abscess

sugi spider mite (Oligonychus hondoensis)

cave painting

Mining

longwall mining

annual income threshold (that affects taxes or social insurance)

Historical term

Berlin Wall

wall writings

Archaic

notices proclaiming laws

Secret language of court ladies

tofu

grass mixed with mud to construct walls

Hedera rhombea (species of ivy)