What does 二十日 mean?
二十日 is a Japanese noun meaning “twentieth (of the month), twenty days” in English. It can also be translated as “20 days” depending on context. It is written as 二十日 in kanji, はつか in hiragana, and hatsuka in romaji. This word is part of JLPT N5 vocabulary.
Example sentence
私は二十日までに帰るつもりです。
I expect to be back by the 20th.