agreement vs settlement

agreement and settlement both are nouns.

Word	Noun	Adjective	Verb	Adverb
agreement	Yes	No	No	No
settlement	Yes	No	No	No

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

agreement (noun)	settlement (noun)
compatibility of observations	termination of a business operation by using its assets to discharge its liabilities
the thing arranged or agreed to	the act of colonizing; the establishment of colonies
the verbal act of agreeing	something settled or resolved; the outcome of decision making
the statement (oral or written) of an exchange of promises	a conclusive resolution of a matter and disposition of it
the determination of grammatical inflection on the basis of word relations	a body of people who settle far from home but maintain ties with their homeland; inhabitants remain nationals of their home state but are not literally under the home state's system of government
harmony of people's opinions or actions or characters	a community of people smaller than a town
	an area where a group of families live together