contain vs retain

contain and retain both are verbs.

Word	Noun	Adjective	Verb	Adverb
contain	No	No	Yes	No
retain	No	No	Yes	No

As verbs, retain is a hyponym of contain; that is, retain is a word with a more specific, narrower meaning than contain:

Other hyponyms of contain include confine, enclose, hold in.

contain (verb)	retain (verb)
hold back, as of a danger or an enemy; check the expansion or influence of	keep in one's mind
lessen the intensity of; temper; hold in restraint; hold or keep within limits	secure and keep for possible future use or application
include or contain; have as a component	allow to remain in a place or position or maintain a property or feature
be divisible by	hold back within
contain or hold; have within
be capable of holding or containing