When you say that something "snapped", it means that it broke. But "break" is a very general word. English has several more specific words to describe different ways of breaking:
"Snapping" is specifically a kind of breaking that happens quickly and often makes a noise. Some things that "snap" include:
- a small stick that you break with your hands
- a rope that's pulled too tightly
Sometimes when you talk about things "snapping", you talk about how many pieces they snapped into:
It snapped in two.