What does "excess" mean when talking about chemistry?

I’m giving this a try here. I saw this phrase in a book months ago and for the life of me, can’t find it again. I am doing titrations for iodine, and the phrase is “solutions containing an excess of iodine”. I want to make sure I understand this correctly. I have an idea of what this means, but I was hoping some chemist in the collective may know for sure. Thanks for any help.