colony vs zoarium

colony and zoarium both are nouns.

Word	Noun	Adjective	Verb	Adverb
colony	Yes	No	No	No
zoarium	Yes	No	No	No

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

colony (noun)	zoarium (noun)
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	a colony of zooids.
a group of organisms of the same type living or growing together
(microbiology) a group of organisms grown from a single parent cell
a geographical area politically controlled by a distant country
a place where a group of people with the same interest or occupation are concentrated