What does ダブル mean?
ダブル is a Japanese noun meaning “double” in English. It can also be translated as “doubles (e.g. in tennis), biracial person (esp. half-Japanese)” depending on context. It is written as ダブル in hiragana, and daburu in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
ダブルのバスつきの部屋がいいです。
I'd like a double with a bath.