(chemistry) acidic oxide

(chemistry) amphoteric oxide

(chemistry) basic oxide

(biochemistry) essential amino acid

(mahjong) big three dragons: a 役満 (yakuman, “limit”) hand with triplets or quads of each of the 三元牌 (sangenpai, “dragon tiles”)

(inorganic chemistry) Synonym of 二酸化炭素 (nisanka tanso, “carbon dioxide”); carbonic acid gas

São Tomé and Príncipe

(informal) a Buddhist monk, a bonze

Alternative form of サンティアゴ (“Santiago”)

“third-category beer”, a beer-like alcoholic beverage that is not classified as either beer or happōshu in the Japanese tax code