fight vs Armageddon

fight and Armageddon both are nouns.

Word	Noun	Adjective	Verb	Adverb
fight	Yes	No	Yes	No
Armageddon	Yes	No	No	No

As nouns, Armageddon is a hyponym of fight; that is, Armageddon is a word with a more specific, narrower meaning than fight:

Other hyponyms of fight include pitched battle, naval battle, armed combat, combat, dogfight, assault.

fight (noun)	Armageddon (noun)
a hostile meeting of opposing military forces in the course of a war	any catastrophically destructive battle
the act of fighting; any contest or struggle	(New Testament) the scene of the final battle between the kings of the Earth at the end of the world
a boxing or wrestling match
an aggressive willingness to compete
an intense verbal dispute

fight (verb)	Armageddon (verb)
be engaged in a fight; carry on a fight
fight against or resist strongly
make a strenuous or labored effort
exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for