deputation vs mission

deputation and mission both are nouns.

Word	Noun	Adjective	Verb	Adverb
deputation	Yes	No	No	No
mission	Yes	No	No	No

As nouns, deputation and mission are synonyms defined as:

Other synonyms of deputation include commission, delegacy, delegation.

deputation (noun)	mission (noun)
authorizing subordinates to make certain decisions	a special assignment that is given to a person or group
a group of representatives or delegates	an operation that is assigned by a higher headquarters
	the organized work of a religious missionary
	a group of representatives or delegates
	an organization of missionaries in a foreign land sent to carry on religious work