赤地: red cloth; red background

The hiragana syllable ぢゃ (ja). Its equivalent in katakana is ヂャ (ja).

The hiragana syllable ぢょ (jo). Its equivalent in katakana is ヂョ (jo).

The hiragana syllable ぢゅ (ju). Its equivalent in katakana is ヂュ (ju).

pot calling the kettle black; six of one, half a dozen of the other

(mahjong) a win worth four times of a 満貫 (mangan): 48,000 points if the winning player is on the East (dealer) side or 32,000 points otherwise

(mahjong) a winning hand using special rules; worth 48,000 points if the winning player is on the East (dealer) side or 32,000 points otherwise

(figuratively) driving force

a common tern

(biology) a cnidocyte