snap verb
1 break suddenly with a sharp noise
ADV. suddenly The branch suddenly snapped.
PHRASES snap (sth) in half/two She picked up the pencil and snapped it in two.
2 move (sth) quickly with a sharp noise
PHRASES snap (sth) open/shut She snapped the lid shut. | snap (sth) together The plastic pieces snap together to make a replica of a dinosaur.
3 speak in a quick angry way
ADV. angrily, impatiently, irritably, sarcastically, sharply | back ‘How should I know?’ Zen snapped back.
PREP. at He lost his temper and snapped irritably at the children.
4 lose control
ADV. finally My patience finally snapped.
You can also check other dicts: snap (English, 中文解释 ), wordnet sense, Collins Definition