submission vs group action

submission and group action both are nouns.

Word	Noun	Adjective	Verb	Adverb
submission	Yes	No	No	No
group action	Yes	No	No	No

As nouns, group action is a hypernym of submission; that is, group action is a word with a broader meaning than submission:

submission (noun)	group action (noun)
the act of submitting; usually surrendering power to another	action taken by a group of people
something (manuscripts or architectural plans and models or estimates or works of art of all genres etc.) submitted for the judgment of others (as in a competition)
an agreement between parties in a dispute to abide by the decision of an arbiter
a legal document summarizing an agreement between parties in a dispute to abide by the decision of an arbiter
(law) a contention presented by a lawyer to a judge or jury as part of the case he is arguing
the feeling of patient, submissive humbleness
the condition of having submitted to control by someone or something else