Will, Desire, Ambition
noun
If you have an idea of what you want already, then that's good! You have will, desire, and ambition. Those who don't know what they want can't have any of these.
いよく
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
金メダル獲得に意欲をみせた。
I showed the will to win a gold medal.