Definition of “spring” - Learner’s Dictionary

spring

noun us uk /sprɪŋ/
SEASON [ C, U ]

A2 the season of the year between winter and summer, when the weather becomes warmer and plants start to grow again:

I'm starting a new course in the spring.

More examples

METAL [ C ]

a piece of metal that curves round and round and that returns to its original shape after being pushed or pulled:

bed springs
WATER [ C ]

a place where water comes out of the ground:

hot springs
MOVEMENT [ C, U ]

(Definition of “spring noun” from the Cambridge Learner's Dictionary © Cambridge University Press)