Refers to a mechanical coil spring. In Japanese, this is the most common standalone meaning of スプリング.
この時計のスプリングが壊れてしまった。
The spring in this watch has broken.
Used mainly in compound words such as スプリングコート or スプリングセール. For the season itself, 春 is the standard word.
スプリングセールで服を買った。
I bought clothes at the spring sale.
Abbreviation of スプリングコート. Refers to a light coat worn in spring or autumn.
See also: スプリングコート
朝はまだ肌寒いのでスプリングを着ていく。
It's still chilly in the morning, so I'll wear a light overcoat.
The springs in the old sofa have stretched out.
On chilly mornings I wear a light spring coat when I go out.
This mattress has sturdy springs inside it.
helical spring