A lie is an assertion that is believed to be false, typically used with the purpose of deceiving someone. The practice of communicating lies is called lying. A person who communicates a lie may be termed a liar. Lies may serve a variety of instrumental, interpersonal, or psychological functions for the individuals who use them.
Generally, the term "lie" carries a negative connotation, and depending on the context a person who communicates a lie may be subject to social, legal, religious, or criminal sanctions.
Types and associated terms
A barefaced, bald-faced or bold-faced lie is an impudent, brazen, shameless, flagrant, or audacious lie that is sometimes but not always undisguised and that it is even then not always obvious to those hearing it.