咖啡因 kā fēi yīn 🔊 caffeine (loanword) + Keep this word Meanings kā fēi yīn caffeine (loanword) Its characters 咖kācoffee; café (abbr. for 咖啡[ka1 fei1])啡fēi(used in loanwords for its phonetic value)因yīncauseHSK 6 Words with 咖啡因 无咖啡因 wú kā fēi yīn decaffeinated 脱咖啡因 tuō kā fēi yīn decaffeinated