chapter vs association

chapter and association both are nouns.

Word	Noun	Adjective	Verb	Adverb
chapter	Yes	No	No	No
association	Yes	No	No	No

chapter (noun)	association (noun)
a subdivision of a written work; usually numbered and titled	the act of consorting with or joining with others
a series of related events forming an episode	the process of bringing ideas or events together in memory or imagination
a local branch of some fraternity or association	a formal organization of people or groups of people
an ecclesiastical assembly of the monks in a monastery or even of the canons of a church	(ecology) a group of organisms (plants and animals) that live together in a certain geographical region and constitute a community with a few dominant species
any distinct period in history or in a person's life	(chemistry) any process of combination (especially in solution) that depends on relatively weak chemical bonding
	a relation resulting from interaction or dependence
	a social or business relationship
	the state of being connected together as in memory or imagination