KanjiJLPT N1
Sigh

sigh, lament, moan, grieve, sigh of admiration

Mnemonic

A towering sunflower begins to wilt, petals falling one by one. You open your mouth and let out a deep sigh, lamenting all that fading beauty. Each golden petal that drops pulls another long sigh from your lips, mourning what was once radiant and alive.
Additional thoughts
Picture yourself in a sunflower field at dusk. The flowers droop and you exhale through your open mouth — a long, heartfelt breath. Mouth is the channel for the sigh; the dying sunflower is what moves you so deeply.
Quick recall
A wilting sunflower makes your mouth release a mournful sigh.

Details

The keyword for 嘆 is sigh. This kanji conveys the act of sighing deeply, often as an expression of grief, lamentation, or profound admiration. It encompasses both sorrowful sighing—such as lamenting over misfortune or the state of the world—and sighs of wonder or deep emotional moved-ness. The character captures that moment of releasing a long, heartfelt breath in response to something deeply felt.
On'yomi
たん
Kun'yomi
なげ.く、なげ.かわしい

Used in vocab