Oldtimer and Veteran

Oldtimer noun - An experienced person who has been through many battles; someone who has given long service.

Veteran is a synonym for oldtimer in elderly person topic. In some cases you can use "Veteran" instead the word "Oldtimer" as a noun or an adjective, when it comes to topics like able to perform, experienced person.

Veteran noun - An experienced person who has been through many battles; someone who has given long service.

Oldtimer is a synonym for veteran. You can use "Oldtimer" instead a noun "Veteran".