liar

As nouns the difference between traitor and liar

is that traitor is traitor while liar is one who tells lies.

As nouns the difference between liar and rumor

is that liar is one who tells lies while rumor is (us|countable) a statement or claim of questionable accuracy, from no known reliable source, usually spread by word of mouth.

As a verb rumor is

(transitive|usually|used in the passive voice) to tell a rumor about; to gossip.

As nouns the difference between liar and thief

is that liar is one who tells lies while thief is one who has carried out a theft.

As nouns the difference between phony and liar

is that phony is a person who assumes an identity or quality other than their own while liar is one who tells lies.

As an adjective phony

is fraudulent; fake; having a misleading appearance.

As a noun liar

is one who tells lies.

As an adjective dishonest is

not honest.

As nouns the difference between swindler and liar

is that swindler is a person who swindles, cheats or defrauds while liar is one who tells lies.

As nouns the difference between liar and lawyer

is that liar is one who tells lies while lawyer is a professional person qualified (as by a law degree and/or bar exam) and authorized to practice law, ie conduct lawsuits and/or give legal advice.

As a verb lawyer is

(informal) to practice law.

As nouns the difference between liar and fiber

is that liar is one who tells lies while fiber is (countable) a single elongated piece of a given material, roughly round in cross-section, often twisted with other fibers to form thread.

As nouns the difference between liar and charlatan

is that liar is one who tells lies while charlatan is charlatan, quack.

As an adjective charlatan is

said of someone who talks frivolously.

As nouns the difference between liar and snitch

is that liar is one who tells lies while snitch is a thief.

As a verb snitch is

to steal, quickly and quietly.