expression, ichidan verb
get excited; have one's heart leap; feel thrilled
Idiomatic expression for a feeling of eager anticipation or excitement, often about something upcoming.
新しいプロジェクトの話を聞いて、胸を躍らせた。
I got excited hearing about the new project.
旅行の前日は、胸を躍らせてなかなか眠れなかった。
The night before the trip, I was so thrilled I couldn't sleep.