article vs breakable

article and breakable both are nouns.

Word	Noun	Adjective	Verb	Adverb
article	Yes	No	Yes	No
breakable	Yes	Yes	No	No

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

Other hyponyms of article include knickknack, novelty, notion, ware.

article (noun)	breakable (noun)
one of a class of artifacts	an article that is fragile and easily broken
nonfictional prose forming an independent part of a publication
(grammar) a determiner that may indicate the specificity of reference of a noun phrase
a separate section of a legal document (as a statute or contract or will)

article (adjective)	breakable (adjective)
	capable of being broken or damaged

article (verb)	breakable (verb)
bind by a contract; especially for a training period