Con artist and False witness

Con artist noun - A swindler who exploits the confidence of his victim.

False witness and con artist are semantically related In some cases you can use "False witness" instead a noun phrase "Con artist".

False witness noun - A person who deliberately gives false testimony.

Con artist and false witness are semantically related in liar topic. You can use "Con artist" instead a noun phrase "False witness", if it concerns topics such as person who tells falsehood.