The code `for cha in word` is a **for loop**...

The code for cha in word is a for loop in Python that iterates through each character in the string word. Here's what happens:

1. word is expected to be a string (or any iterable, but in this case a string is implied due to character iteration).
2. cha is a loop variable that represents each element (in this case, each character) of the string word.
3. On each iteration of the loop, cha takes on the next character in the string word.

Example:

word = "hello"
for cha in word:
    print(cha)

Output:

h
e
l
l
o

In this example:

• On the first iteration, cha is 'h'.
• On the second iteration, cha is 'e'.
• And so on, until all characters in word are processed.

This code is commonly used for processing each character in a string one at a time.