risk vs luck through

risk is a noun but luck through is not a noun.

Word	Noun	Adjective	Verb	Adverb
risk	Yes	No	Yes	No
luck through	No	No	Yes	No

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

Other hyponyms of risk include go for broke, luck it.

risk (noun)	luck through (noun)
a venture undertaken without regard to possible loss or injury
the probability of being exposed to an infectious agent
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

risk (verb)	luck through (verb)
expose to a chance of loss or damage	act by relying on one's luck
take a risk in the hope of a favorable outcome