Answer:
I begin with the letter โiโ, if you add โaโ in front of me, I become a new word with a different meaning, but still sounds exactly the same. What word am I?
When it comes to me you go on red and stop on green.
I am filled with garb the price is free. Just return what you don't need.
I have a frame but no pictures. I have poles but not standing up. What am I?
We applaud if you perform well.
I am your mother's brother's only brother in law. Who am I?