Lying is a vice of deliberately being untruthful and deceitful. It is a false assertion made to deceive someone.

Lie has a negative connotation and depending upon the context a liar can have social, religious or legal sanction.  

On the ethics of lie, the views of scholars diverge.

A deontologist will say that lying is unethical in every situation. For a utilitarian lying may be allowed if it leads to greater happiness for greater number.

Further a consequentialist may argue that ethics of lying will depend upon the context and situation

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