attendee and signee

I am familiar with the meaning of ‘payee’ , and the suffix ‘-ee’ conventionally means the recipient of the action. But just now i came across ‘attendee’ and ‘signee’, what do they mean? Has the denotation of ‘-ee’ changed? what about ‘deletee’ and ’ erasee’?

An attendee is someone who attends an event, and a signee is someone who signs a contract. The meaning of “-ee” has not changed. As for “attendee,” you can look at it as someone who receives attendance. The last two you asked about are nonsense words.