change the name of Edit button on Recruitment page

Hi I'd like to change the name of a button on my recruitment questionnaire. It currently says "Edit" after you've signed up for the opportunity. Yes, we have 1-time volunteers coming in here to sign the waiver and no one sees "Edit" and thinks click here to register info - they don't even think of it as "Edit signup". I only accidentally discovered it because I was clicking everything trying to find the registration page.