abort vs miscarry

abort is a noun but miscarry is not a noun.

Word	Noun	Adjective	Verb	Adverb
abort	Yes	No	Yes	No
miscarry	No	No	Yes	No

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

abort (noun)	miscarry (noun)
the act of terminating a project or procedure before it is completed

abort (verb)	miscarry (verb)
terminate a pregnancy by undergoing an abortion	suffer a miscarriage
cease development, die, and be aborted	be unsuccessful
terminate before completion