spring

1a :  a source of supply; especially :  a source of water issuing from the groundb :  an ultimate source especially of action or motion

2 :  spring tide

3 :  a time or season of growth or development; specifically :  the season between winter and summer comprising in the northern hemisphere usually the months of March, April, and May or as reckoned astronomically extending from the March equinox to the June solstice

4 :  an elastic body or device that recovers its original shape when released after being distorted

5a :  the act or an instance of leaping up or forward :  boundb (1) :  capacity for springing :  resilience (2) :  energy, bounce

6 :  the point or plane at which an arch or vault curve springs from its impost

:  to fit with springs

1 :  to move suddenly upward or forward :  leap The lion crouched, waiting to spring.

2 :  to appear or grow quickly or suddenly Weeds sprang up overnight. Tears sprang from her eyes.

3 :  to have (a leak) appear

4 :  to move quickly by or as if by stretching and springing back The lid sprang shut.

5 :  to cause to operate suddenly He was planning to spring a trap.

6 :  to come into being :  arise An idea sprang in his mind.

1 :  the season between winter and summer including in the northern hemisphere usually the months of March, April, and May

2 :  a twisted or coiled strip of material (as metal) that recovers its original shape when it is released after being squeezed or stretched

3 :  the ability of something to return to its original shape when it is compressed or stretched

4 :  a source of supply (as of water coming up from the ground)

5 :  the act or an instance of leaping up or forward He … caught sight of the incredible spring of a doe … — Virginia Hamilton, M. C. Higgins

6 :  a bouncy or lively quality She had a spring in her step.

:  any of various elastic orthodontic devices used especially to apply constant pressure to misaligned teeth