Definition of “spring” - Learner’s Dictionary

spring

noun us uk /sprɪŋ/
In spring the trees are covered in buds.Beetle grubs stay inactive underground until spring.This plant will produce small yellow flowers in the spring.Filming is slated to begin next spring.They separated last spring.
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.
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

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