What is the meaning of "come through"?
I've bought the 3rd (!!!) English dictionary with the purpose to be able to see the meanings of all the words I don't understand. Now I have CollinsCobuild and it gives me a lot of "come through" meaning and neither of them fit... So, could you tell me what is the real meaning of "come through" in the sentence below and why my CollinsCobuild doesn't give this meaning?
The sentence:
Whenever it rained, water came through Nasreddin's roof, so one day he got his ladder, climbed up on to the roof and
began to mend it.
CollinsCobuild come through meanings:
1) no passive To come through a dangerous or difficult situation means to survive it and recover from it.
2) If a feeling or message comes through, it is clearly shown in what is said or done.
3) If something comes through, it arrives, especially after some procedure has been carried out.
4) If you come through with what is expected or needed from you, you succeed in doing or providing it.