liar
🇺🇸
/ˈlaɪər/
🇬🇧
/ˈlaɪə(r)/
a person who says things that are not true
He is a liar because he said he finished his homework when he did not.
彼は嘘つきです、なぜなら宿題を終えていないのに終えたと言ったからです。