1. （战争、战斗或疾病）爆发
If something such as war, fighting, or disease breaks out, it begins suddenly.

2. 越狱；逃跑
If a prisoner breaks out of a prison, they escape from it.

3. 摆脱（单调刻板的状况）
If you break out of a dull situation or routine, you manage to change it or escape from it.

4. 布满（汗水）；出（疹子）
If you break out in a rash or a sweat, a rash or sweat appears on your skin.

1. become raw or open

e.g. He broke out in hives
My skin breaks out when I eat strawberries
Such boils tend to recrudesce

Synonym: eruptrecrudesce

2. start abruptly

e.g. After 1989, peace broke out in the former East Bloc

Synonym: erupt

3. begin suddenly and sometimes violently

e.g. He broke out shouting

4. take from stowage in preparation for use

5. move away or escape suddenly

e.g. The horses broke from the stable
Three inmates broke jail
Nobody can break out--this prison is high security

Synonym: breakbreak away