What does 葉書 mean?
葉書 is a Japanese noun meaning “postcard” in English. It can also be translated as “memo” depending on context. It is written as 葉書 in kanji, はがき in hiragana, and hagaki in romaji. This word is part of JLPT N5 vocabulary.
Example sentence
はがきにこの切手を貼って郵便箱に投函しなさい。
Put this stamp on the postcard and drop it in the mailbox.