picnic vs task

picnic and task both are nouns.

Word	Noun	Adjective	Verb	Adverb
picnic	Yes	No	Yes	No
task	Yes	No	Yes	No

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

Other hypernyms of picnic include labor, labour, project, undertaking.

picnic (noun)	task (noun)
any undertaking that is easy to do	a specific piece of work required to be done as a duty or for a specific fee
any informal meal eaten outside or on an excursion	any piece of work that is undertaken or attempted
a day devoted to an outdoor social gathering

picnic (verb)	task (verb)
eat alfresco, in the open air	use to the limit
	assign a task to