Meaning of “special” - Learner’s Dictionary

special

adjective uk us /ˈspeʃəl/
VERY GOOD

A2 better or more important than usual things:

a special friend
I'm cooking something special for her birthday.
special attention/care/treatment

B2 treatment that is better than usual

special offer UK

B1 a price that is lower than usual:

I bought them because they were on special offer.
DIFFERENT

B1 different from normal things, or used for a particular purpose:

You need to use a special kind of paint.
Some of the children have special educational needs.

(Definition of “special adjective” from the Cambridge Learner’s Dictionary © Cambridge University Press)