Question

Как сказать одним словом:

1To cause physical injury

2To be permitted to stay away from duty or work because of illness

3Pain in the region of the heart ,with irregular beating

4 something that happens without a cause that can be seen at once ,usually with smth unfortunate and undesirable

Answer 1

1 harm
2 sick-leave 
3 arrhythmia 
4 incident