相槌 あいづち aizuchi #18,885 Meanings also 相づち noun aizuchi; backchanneling; interjections indicating that one is paying attention two smiths hammering at an object in turn Its kanji 相 ソウ、ショウ · あい- inter-, mutual, together, each other, minister of state, councillor, aspect, phase, physiognomy 槌 ツイ · つち hammer, mallet