risky venture vs task

risky venture and task both are nouns.

Word	Noun	Adjective	Verb	Adverb
risky venture	Yes	No	No	No
task	Yes	No	Yes	No

As nouns, task is a hypernym of risky venture; that is, task is a word with a broader meaning than risky venture:

Other hypernyms of risky venture include labor, labour, project, undertaking.

risky venture (noun)	task (noun)
a wild and exciting undertaking (not necessarily lawful)	a specific piece of work required to be done as a duty or for a specific fee
	any piece of work that is undertaken or attempted

risky venture (verb)	task (verb)
	use to the limit
	assign a task to