sigh

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To exhale audibly in a long deep breath, as in weariness or relief.
2. v. To emit a similar sound: willows sighing in the wind.
3. v. To feel longing or grief; yearn: sighing for their lost youth.
4. v. To express with or as if with an audible exhalation.
5. v. Archaic To lament.
6. n. The act or sound of sighing.

Century Dictionary and Cyclopedia

1. To heave or draw a sigh (see sigh, n.); make an audible inspiration and expiration indicative of some emotion; make an expressive respiratory sound: as, to sigh with grief or disappointment, or (less commonly) from satisfaction or the sense of relief.
2. Hence To experience an oppressive mental sensation; yearn or long, as from a special access of emotion or desire: often with for: as, to sigh for the good old times.
3. To make a sound resembling or suggestive of a sigh; sound with gentle or subdued mournfulness: said of things, especially the wind and its effects.
4. To emit, use, or act upon or in regard to with sighs or in sighing; utter, express, lament, etc., with sighing utterance or feeling: used poetically with much latitude: as, to sigh out one's love, pleasure, or grief.
5. n. A sudden involuntary deep-drawn inspiration of breath, followed by its more or less audible expiration, usually expressive of some emotion or sensation: as, a sigh of grief, chagrin, relief, pleasure, or fatigue.
6. See sie.
7. A Middle English preterit of see.

Wiktionary

1. n. A deep and prolonged audible inspiration or respiration of air, as when fatigued, frustrated, grieved, or relieved; the act of sighing.
2. n. Figuratively, a manifestation of grief; a lament.
3. n. Cockney rhyming slang A person who is bored.
4. v. 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.
5. v. intransitive To lament; to grieve.
6. v. intransitive To utter sighs over; to lament or mourn over.
7. v. intransitive To experience an emotion associated with sighing.
8. v. intransitive To make a sound like sighing.
9. v. transitive To exhale (the breath) in sighs.
10. v. transitive To express by sighs; to utter in or with sighs.
11. v. transitive, archaic To utter sighs over; to lament or mourn over.
12. interj. An expression of fatigue, exhaustion, grief, sorrow, frustration, or the like, often used in casual written contexts.

GNU Webster's 1913

1. v. 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, or the like.
2. v. Hence, to lament; to grieve.
3. v. To make a sound like sighing.
4. v. To exhale (the breath) in sighs.
5. v. To utter sighs over; to lament or mourn over.
6. v. To express by sighs; to utter in or with sighs.
7. n. A deep and prolonged audible inspiration or respiration of air, as when fatigued or grieved; the act of sighing.
8. n. Figuratively, a manifestation of grief; a lan�ent.

WordNet 3.0

1. v. heave or utter a sigh; breathe deeply and heavily
2. v. utter with a sigh
3. n. a sound like a person sighing
4. n. an utterance made by exhaling audibly