the act of deceiving or being deceived

misleading; being dishonest

a mistake; the state of being wrong in belief or behaviour

mistake; wrong

a short story that teaches a moral, especially one with animals in it

fantasy, story

a false or mistaken belief; false reasoning or argument

illusion, misconception

a lie (the usual word)

lie

(to make an) untrue statement (especially about something unimportant)

undetailed lie

something invented or imagined

made-up story

untruthfulness; a tendency to be untruthful

insincerity

a statement or conclusion that does not (seem to) have any connection to what was said or written before

fallacy