Question

add another feather ........his cap
which one is right. in or to​

Answer 1

Answer:

Add another feather to his cap.

Explanation:

hope it helps you.

Answer 2

The phrase is 'a feather in your cap'. It represents achieving something one can be proud of. The phrase is believed to be derived from custom of adding feather in hat, after defeating enemy or after successful hunting. The opposite of phrase too is present.