plight vs assurance

plight and assurance both are nouns.

Word	Noun	Adjective	Verb	Adverb
plight	Yes	No	Yes	No
assurance	Yes	No	No	No

As nouns, assurance is a hypernym of plight; that is, assurance is a word with a broader meaning than plight:

Other hypernyms of plight include pledge.

plight (noun)	assurance (noun)
a solemn pledge of fidelity	freedom from doubt; belief in yourself and your abilities
a situation from which extrication is difficult especially an unpleasant or trying one	a statement intended to inspire confidence
	a binding commitment to do or give or refrain from something
	a British term for some kinds of insurance

plight (verb)	assurance (verb)
promise solemnly and formally
give to in marriage