A liar is someone who intentionally tells falsehoods or untruths, often for personal gain or to deceive others. The term can also refer to a person who habitually and consistently lies, even when there is no apparent benefit in doing so.
Usage examples
The politician was labeled a liar after several false claims were exposed by the media.
His reputation as a liar made it difficult for people to trust him, even when he was telling the truth.
She accused her ex-partner of being a compulsive liar during the divorce proceedings.
The hardest thing to do is to not put your little liar on the hot seat. (thenextfamily.com)
When i was 20, i bought 5 buildings in 5 years during the no doc loan years with a bunch of liar loans. (financialsamurai.com)
This is coming from a person who is proven liar who only purpose here it to continue to fuel the hatred and bigotry toward this minority group. (religion.blogs.cnn.com)