SUBMISSION definition: 1. the act of giving something for a decision to be made by others, or a document formally given in…. Learn more. If a teacher asks for your submission , she might want you to obey her every command like a drone or, on the other hand, she may want just you to turn something in for her approval. SUBMISSION meaning: 1 : an act of giving a document, proposal, piece of writing, etc., to someone so that it can be considered or approved an act of submitting something; 2 : something that is submitted Submit is the act of presenting or yielding something to another's consideration, while submission refers to the state or the item that has been submitted.