After a long discussion they finally 'achieved/reached an understanding'. = After a long discussion they finally 'came to an understanding'. [=they finally agreed]
My 'understanding' was that you were going to help. = 'It was my understanding' that you were going to help. [=I thought that you were going to help]
She agreed to do the work 'on the understanding that' she would be paid now.
(..) #Is there only pain # #And hatred # #And misery # #And each time I feel like this inside # #There's one thing I want to know # #What's so funny 'bout peace, love and understanding # #heering] # Ohh-oh-oh-oh-ohh # #What's so funny 'bout peace, love and understanding # #I'm winkin' at ya # (..)2003 Lost in Translation