(intransitive) To inhale a larger quantity of air than usual, and immediately expel it; to make a deep single audible respiration, especially as the result or involuntary expression of fatigue, exhaustion, grief, sorrow, frustration, or the like.

A deep, prolonged audible inhale and exhale of breath; as when fatigued, frustrated, grieved, or relieved; the act of sighing. / Figuratively, a manifestation of grief; a lament.

An expression of fatigue, exhaustion, grief, sorrow, frustration, or the like, often used in casual written contexts.

simple past tense and past participle of sigh

plural of sigh

Third-person singular simple present indicative form of sigh

present participle of sigh

The utterance of a sigh.

plural of sighing

(poetic) Full of sighs.