双

ban-sugoroku board (usu. wooden); sugoroku board

Pisces (12th zodiacal sign); the Fish; the Fishes

two-humped; two-peaked; bimodal

Linguistics

repeated initials (in Chinese poetry); recurring initials

both hands

Architecture

(openable) panel in a door

Music

(in Japan) 6th note of the ancient chromatic scale (approx. G)

Music

sōjō mode (one of the six main gagaku modes)

both parents

ban-sugoroku; traditional Japanese board game similar to backgammon

Botany

dicotyledon; dicot

dipterocarp (any plant of genus Dipterocarpus)

Mathematics

duality

Noun or verb acting prenominally

bipolar

Sumo

inner-thigh-propping twist down

bilaterality (e.g. of a contract); two-sidedness (e.g. of a treaty)

Gemini (3rd zodiacal sign); the Twins

Mahjong

wait to turn either of two pairs into a three-of-a-kind to finish one's hand

Mathematics

hyperboloid

dipole

Euphemistic; Esp. in erotic literature

breasts; buttocks; two hills

Mathematics

bijection

Sumo

deep double underarm grip which prevents the opponent from grabbing the belt

Sumo

outer-thigh-propping twist down

side locks