1 [+ object] : to give (a document, proposal, piece of writing, etc.) to someone so that it can be considered or approved
Candidates interested in the position should submit their résumés to the Office of Human Resources.
Submit your application no later than January 31st.
Requests must be submitted in writing.
Photographs submitted for publication will not be returned.
2 [no object] : to stop trying to fight or resist something : to agree to do or accept something that you have been resisting or opposing
He vowed that he would never submit. [=give in]
— often + to
He refused to submit to their demands.
We will not submit to you without a fight.
Public outcry caused him to submit to an investigation of his finances.
3 [+ object] formal : to offer (something) as an opinion or suggestion — often + that
I submit that his guilt has not been proven.