1 definition by that nerd girl

Top Definition
CAS
Creativity, Action, Service.

It's the part of the IB program that's supposed to make you well-rounded. You have to get 150 hours of them in your two years.
You only have 100 CAS hours? The deadline is tomorrow.

Yeah, I have 8 more CAS sheets to fill out. Will you sign my supervisor's name?
by that nerd girl April 23, 2006

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