risk vs hazard

risk and hazard both are nouns.

Word	Noun	Adjective	Verb	Adverb
risk	Yes	No	Yes	No
hazard	Yes	No	Yes	No

As nouns, risk and hazard are synonyms defined as:

risk and hazard: a source of danger; a possibility of incurring loss or misfortune

Other synonyms of risk include endangerment, jeopardy, peril.

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

Other hyponyms of risk include adventure, jeopardize, stake, venture, bell the cat.

As verbs, risk and hazard are synonyms defined as:

Other synonyms of risk include adventure, chance, gamble, run a risk, take a chance, take chances.

risk (noun)	hazard (noun)
a venture undertaken without regard to possible loss or injury	an obstacle on a golf course
the probability of being exposed to an infectious agent	an unknown and unpredictable phenomenon that causes an event to result one way rather than another
the probability of becoming infected given that exposure to an infectious agent has occurred	a source of danger; a possibility of incurring loss or misfortune
a source of danger; a possibility of incurring loss or misfortune

risk (verb)	hazard (verb)
expose to a chance of loss or damage	put forward, of a guess, in spite of possible refutation
take a risk in the hope of a favorable outcome	take a risk in the hope of a favorable outcome
	put at risk