A cake prepared or served to celebrate someone's birthday; often decorated with candles and toppings.
子どもの誕生日ケーキにキャラクターのチョコを飾った。
I decorated the child's birthday cake with a character-shaped chocolate.
人気の店は週末の誕生日ケーキを早めに予約しないと売り切れる。
At popular shops, weekend birthday cakes sell out unless you reserve early.
誕生日ケーキのろうそくを吹き消して願い事をした。
I blew out the candles on the birthday cake and made a wish.