What does 流石 mean?
流石 is a Japanese noun meaning “indeed, truly, as one would expect” in English. It can also be translated as “still, even ... (e.g. "even a genius")” depending on context. It is written as 流石 in kanji, さすが in hiragana, and sasuga in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
さすが、お嬢様。自由奔放な生活をしていたわけじゃないんだ。
Just what you'd expect of a young lady, you certainly weren't left to live as you pleased.