砥 と Meanings Noun whetstone; grindstone See also: 砥石 (といし). Kanji 砥 whetstone; grindstone. Read as と. Words containing 砥 砥石 (といし) whetstone 荒砥 (あらと) rough grindstone 丸砥石 (まるといし) grindstone And 8 more. Jinuma: Japanese Dictionary · Word lists