noun
deep sigh; sighing deeply
A literary or somewhat formal noun for a long, deep sigh, often expressing sorrow, relief, or resignation.
彼は長嘆息をついて、窓の外を見つめた。
He gave a deep sigh and stared out the window.
その知らせを聞いて、思
Upon hearing the news, a deep sigh escaped her involuntarily.