In context|uncountable|lang=en terms the difference between sarcasm and farce
is that
sarcasm is (uncountable) a form of humor that is marked by mocking with irony, sometimes conveyed in speech with vocal over-emphasis insincerely saying something which is the opposite of one's intended meaning, often to emphasize how unbelievable or unlikely it sounds if taken literally, thereby illustrating the obvious nature of one's intended meaning while
farce is (uncountable) a ridiculous or empty show.
In context|countable|lang=en terms the difference between sarcasm and farce
is that
sarcasm is (countable) an act of sarcasm while
farce is (countable) a motion picture or play featuring this style of humor.
As nouns the difference between sarcasm and farce
is that
sarcasm is (uncountable) a form of humor that is marked by mocking with irony, sometimes conveyed in speech with vocal over-emphasis insincerely saying something which is the opposite of one's intended meaning, often to emphasize how unbelievable or unlikely it sounds if taken literally, thereby illustrating the obvious nature of one's intended meaning while
farce is (uncountable) a style of humor marked by broad improbabilities with little regard to regularity or method; compare
sarcasm .