Compare: 弟 vs 弟

弟おと

younger brother (of an older brother); younger sister (of an older sister)

弟おとうと

younger brother; little brother; kid brother

おと弟

N3Noun

younger brother (of an older brother); younger sister (of an older sister)

おとうと弟

N5CommonNoun

younger brother; little brother; kid brother

彼(かれ)は私(わたし)と弟(おとうと)を取り違えた。

He mistook me for my younger brother.

東京の郊外に住む両親や弟(おとうと)は大震災で死(しぬ)んだ。

My parents and little brother, who lived in the suburbs of Tokyo, died in the big earthquake.