What does 嘘つき mean?
嘘つき is a Japanese noun meaning “liar” in English. It can also be translated as “lying” depending on context. It is written as 嘘つき in kanji, うそつき in hiragana, and usotsuki in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
もし嘘なら、彼女はうそつきだ。
If that's false, she's a liar.