reassessment vs assessment

reassessment and assessment both are nouns.

Word	Noun	Adjective	Verb	Adverb
reassessment	Yes	No	No	No
assessment	Yes	No	No	No

As nouns, assessment is a hypernym of reassessment; that is, assessment is a word with a broader meaning than reassessment:

reassessment: a new appraisal or evaluation
assessment: the classification of someone or something with respect to its worth

Other hypernyms of reassessment include appraisal.

reassessment (noun)	assessment (noun)
a new appraisal or evaluation	the act of judging or assessing a person or situation or event
	the market value set on assets
	the classification of someone or something with respect to its worth
	an amount determined as payable