oblige vs indent

oblige is not a noun while indent is a noun.

Word	Noun	Adjective	Verb	Adverb
oblige	No	No	Yes	No
indent	Yes	No	Yes	No

As verbs, indent is a hyponym of oblige; that is, indent is a word with a more specific, narrower meaning than oblige:

Other hyponyms of oblige include pledge, article, indenture, tie down.

oblige (noun)	indent (noun)
	an order for goods to be exported or imported
	the space left between the margin and the start of an indented line

oblige (verb)	indent (verb)
bind by an obligation; cause to be indebted	bind by or as if by indentures, as of an apprentice or servant
provide a service or favor for someone	make a depression into
force somebody to do something	cut or tear along an irregular line so that the parts can later be matched for authentication
	notch the edge of or make jagged
	set in from the margin