conditions vs circumstance

conditions and circumstance both are nouns.

Word	Noun	Adjective	Verb	Adverb
conditions	Yes	No	No	No
circumstance	Yes	No	No	No

As nouns, circumstance is a hypernym of conditions; that is, circumstance is a word with a broader meaning than conditions:

conditions: the set of circumstances that affect someone's welfare
circumstance: the set of facts or circumstances that surround a situation or event

Other hypernyms of conditions include context, setting.

As nouns, circumstance is a hypernym of conditions; that is, circumstance is a word with a broader meaning than conditions:

conditions: the prevailing context that influences the performance or the outcome of a process
circumstance: the set of facts or circumstances that surround a situation or event

Other hypernyms of conditions include context, setting.

conditions (noun)	circumstance (noun)
the atmospheric conditions that comprise the state of the atmosphere in terms of temperature and wind and clouds and precipitation	information that should be kept in mind when making a decision
the set of circumstances that affect someone's welfare	formal ceremony about important occasions
the prevailing context that influences the performance or the outcome of a process	a condition that accompanies or influences some event or activity
	the set of facts or circumstances that surround a situation or event