"pre" is Latin for "before".
"pre-war" means "before the war".
Most pre-war buildings were made of brick like in this photo.
Most post-war buildings are made of glass and steel.
"post" is Latin for "after".
This blog is mainly to explain a different English language expression every day. Sometimes I post other stuff. I also have a YouTube channel which is mostly about computer software: https://www.youtube.com/englishspacedog
