expression, ichidan verb
be filled with expectation; be full of hope; swell with joy
Idiomatic expression describing a heart swelling with positive anticipation, hope, or joy. Often used when looking forward to something.
新しい学校に胸を膨らませて入学した。
I entered the new school with my heart full of expectation.
彼女は将来の夢
She is filled with hope for her future dreams.