circumstance vs condition

circumstance and condition both are nouns.

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

As nouns, circumstance and condition are synonyms defined as:

circumstance and condition: information that should be kept in mind when making a decision

Other synonyms of circumstance include consideration.

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

circumstance: a condition that accompanies or influences some event or activity
condition: a state at a particular time

Other hypernyms of circumstance include status.

circumstance (noun)	condition (noun)
information that should be kept in mind when making a decision	information that should be kept in mind when making a decision
formal ceremony about important occasions	the procedure that is varied in order to estimate a variable's effect by comparison with a control condition
a condition that accompanies or influences some event or activity	an assumption on which rests the validity or effect of something else
the set of facts or circumstances that surround a situation or event	(usually plural) a statement of what is required as part of an agreement
	a state at a particular time
	a mode of being or form of existence of a person or thing
	the state of (good) health (especially in the phrases `in condition' or `in shape' or `out of condition' or `out of shape')
	an illness, disease, or other medical problem

circumstance (verb)	condition (verb)
	apply conditioner to in order to make smooth and shiny
	put into a better state
	specify as a condition or requirement in a contract or agreement; make an express demand or provision in an agreement
	develop (a child's or animal's) behavior by instruction and practice; especially to teach self-control
	establish a conditioned response