二

willow tit (Parus montanus)

Psychology

bicameral mind; bicameralism

Nihi (the two former provinces of Hizen and Higo)

bulb with reservoir; double balloon

On street signs

small two-wheeler (e.g. moped)

On street signs

regular motorcycle

futakuchi-onna; two-mouthed woman; folklore monster that takes the form of a woman with an additional mouth on the back of her head, hidden underneath her hair

second quarter (of a year)

two plates; two helpings; two servings

way in the past; two (or so) decades (ago)

duality; dual nature; duplexity; two-fold character

second-grade tea (second picking)

Numeric

27; twenty seven

２７ only; Colloquial; Numeric; As 27時, 27:00, etc.

3am

Numeric

28; twenty eight

２８ only; Colloquial; Numeric; As 28時, 28:00, etc.

4am

Numeric

29; twenty nine

２９ only; Colloquial; Numeric; As 29時, 29:00, etc.

5am

(having) two choices; choice between two things

Shogi

dropping two unpromoted pawns on the same file (illegal move)

two nights

Noun or verb acting prenominally

biaxial

Buddhism

Shuni-e (ceremony held at some temples in February)

Geometry

digon

Nouns which may take the genitive case particle 'no'

double; two-stage

Common noun

second dan (in martial arts, go, shogi, etc.)

Common noun; Grammar

nidan (verb, verb inflection)

trailing spurge (Euphorbia humifusa)

Baseball

stealing second base