default vs owe

default is a noun but owe is not a noun.

Word	Noun	Adjective	Verb	Adverb
default	Yes	No	Yes	No
owe	No	No	Yes	No

default (noun)	owe (noun)
loss due to not showing up
an option that is selected automatically unless an alternative is specified
loss resulting from failure of a debt to be paid
act of failing to meet a financial obligation

default (verb)	owe (verb)
fail to pay up	be in debt
	be obliged to pay or repay
	be indebted to, in an abstract or intellectual sense