What does 妹 mean?
妹 is a Japanese noun meaning “younger sister (humble)” in English. It is written as 妹 in kanji, いもうと in hiragana, and imouto in romaji. This word is part of JLPT N5 vocabulary.
Example sentence
たまには妹にお小遣いをあげたりするの？
Do you sometimes give your younger sister money?