1 cause

2 origin

3 root cause

4 reason

5 classifier: 个 gè

1 old variant of 因[yīn]

1 because

2 owing to

3 on account of

1 illness

2 classifier: 场 cháng

3 disease

4 to fall ill

5 defect

1 infectious disease

2 contagious disease

3 pestilence

1 to fall gravely ill, never to recover (idiom)

1 long illness makes the patient into a good doctor (idiom)

1 mutually related karma (idiom); fates are intertwined

2 interdependent

1 to hit the target where it hurts (idiom); fig. to hit home

2 to hit the nail on the head (in an argument)

1 cause and effects (idiom); entire process of development