Meaning

1. To tell lies about.
2. To give a false representation of.
3. To contradict, to show (something) to be false.
4. To call a liar; to accuse of falsehood.
5. To fill with lies; to lie to.
6. To conceal the contradictory or ironic presence of (something).
7. To show, evince or demonstrate (something) to be present, particularly something deemed contradictory or ironic.
8. (obsolete) To mimic; to counterfeit.