응원이 · 응원을
cheering, support
Example
여러분의 응원 덕분에 경기에서 이길 수 있었어요.
Thanks to your support, we were able to win the game.
Word parts
응 respond+원 aid
Literally 'answer with help'.
Good to know
응원할게요! = I'm rooting for you! — a common friendly encouragement.