Complete the following text with a suitable word.
I was walking down the street when suddenly I heard a loud ____.
I was walking down the street when suddenly I heard a loud noise.
Complete the following task based on the instruction and optional input provided.### Instruction:
Complete the following text with a suitable word.

### Input:
I was walking down the street when suddenly I heard a loud ____.

### Output:
I was walking down the street when suddenly I heard a loud noise.