(mathematics) A Japanese system of algebra for polynomial equations, adopted from 天(てん)元(げん)術(じゅつ) (tengenjutsu)

(mahjong) determining what tile would complete an opponent's hand

three-dot ellipsis: …

handstand

(typography) the iteration mark 々, used to repeat kanji

(typography) each mark of the pairs of iteration marks ゝ/ゞ and ヽ/ヾ, respectively used to repeat 清音 (seion)/濁音 (dakuon) hiragana and katakana

(typography) either of the iteration marks 〱 and 〲, respectively used to repeat more than one 清音 (seion) and 濁音 (dakuon) in vertical text, as well as their decomposed counterparts, 〳, 〴 and 〵

dolmen - a prehistoric megalithic tomb consisting of a capstone supported by two or more upright stones, most having originally been covered with earth or smaller stones to form a barrow.

amphibole

(mineralogy) anatase