cheat or deceive

だます The common word for deceive.   $$$
カンニング Cheat on a test
ごまかす A small deception – To tell the cops, ‘I wasn’t driving drunk officer, I was just tired.’ ‘I don’t speak Japanese, officer!’ A related phrase - おつりをごまかす - meaning, to keep some of the money  when you make change.
ずるをする Child’s word for cheating.
りの(いつわりの) Very official word for lie, usually used in a court. To perjure. To give false testimony. ‘I did not have sex with that woman!’   LIT
(あざむく) The verb form of criminal fraud – deception for money
(さぎ) The noun form.