Meaning of “green” - Learner’s Dictionary

green

adjective us uk /ɡriːn/
Extra Examples
a dark green dressred, green, and silver Christmas decorationsa pattern of blue and green dotsA green sports car went by.The room was green.
COLOUR

A1 being the same colour as grass:

The traffic lights turned green.
GRASS

B1 covered with grass or other plants:

green spaces
NOT EXPERIENCED informal

having little experience or understanding:

I was very green when I joined the company.

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