丁字形定規 ていじけいじょうぎ Meanings Noun T-square (technical drawing instrument) See also: T定規 (ティーじょうぎ). Kanji 丁 polite. Read as テイ. 字 character 形 shape. Read as ケイ. 定 fix. Read as ジョウ. 規 rule. Read as キ. Jinuma: Japanese Dictionary · Word lists