reliance vs dependency

reliance and dependency both are nouns.

Word	Noun	Adjective	Verb	Adverb
reliance	Yes	No	No	No
dependency	Yes	No	No	No

As nouns, dependency is a hypernym of reliance; that is, dependency is a word with a broader meaning than reliance:

reliance: the state of relying on something
dependency: the state of relying on or being controlled by someone or something else

Other hypernyms of reliance include dependance, dependence.

reliance (noun)	dependency (noun)
certainty based on past experience	a geographical area politically controlled by a distant country
the state of relying on something	the state of relying on or being controlled by someone or something else
	being abnormally tolerant to and dependent on something that is psychologically or physically habit-forming (especially alcohol or narcotic drugs)