Blends / Polysemy

Hi there
I'd like to know some blends in English such as : brunch which is between breakfast and lunch, could you please give me three or four other examples.

the other thing: what is meant by Polysemy in English.
thank you

http://www.usingenglish.com/glossary...teau-word.html
http://www.usingenglish.com/glossary/polysemy.html

Thanks a lot for your help :up: