底 てい Meanings Noun base (logarithmic, exponential, number system); radix base (triangle, cone, cylinder, etc.) type; kind; extent; degree Kanji 底 bottom. Read as テイ. Words containing 底 徹底的 (てっていてき) thorough 海底 (かいてい) bottom of the ocean 徹底 (てってい) thoroughness And 102 more. Word lists Mathematics Jinuma: Japanese Dictionary · Word lists