bad cheque vs bad check

bad cheque and bad check both are nouns.

Word	Noun	Adjective	Verb	Adverb
bad cheque	Yes	No	No	No
bad check	Yes	No	No	No

As nouns, bad cheque and bad check are synonyms defined as:

bad cheque and bad check: a check that is dishonored on presentation because of insufficient funds

bad cheque (noun)	bad check (noun)
a check that is dishonored on presentation because of insufficient funds	a check that is dishonored on presentation because of insufficient funds