@renjinkat - The only "Leave" action in Miro is "Leave team".

I will assume that you are posting because you are confused as to why you don't have the Delete action even though you are the board owner.

If you are not seeing a Delete action, and you believe you are the Board owner, this is likely because you have more than one Miro account and are not signed in under the account that created the board - or someone else with the same name created the board, or another user changed their account profile me to be similar to yours.

If you are posting with another question, please provide some details. 

Hi Robert

Thank you so much! you have solved my problem :)

Much gratitude

Ren