Sigh \Sigh\, n. [OE. sigh; cf. OE. sik. See Sigh, v. i.]

1. A deep and prolonged audible inspiration or respiration of air, as when fatigued or grieved; the act of sighing.

I could drive the boat with my sighs. --Shak.

2. Figuratively, a manifestation of grief; a lan?ent.

With their sighs the air Frequenting, sent from hearts contrite. --Milton.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Sigh \Sigh\, v. i. [imp. & p. p. Sighed; p. pr. & vb. n. Sighing.]

[OE. sighen, si?en; cf. also OE. siken, AS. s[=i]can, and OE. sighten, si?ten, sichten, AS. siccettan; all, perhaps, of imitative origin.]

1. 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. Hence, to lament; to grieve.

He sighed deeply in his spirit. --Mark viii. 12.

3. To make a sound like sighing.

And the coming wind did roar more loud, And the sails did sigh like sedge. --Coleridge.

The winter winds are wearily sighing. --Tennyson.

Note: An extraordinary pronunciation of this word as s[=i]th is still heard in England and among the illiterate in the United States.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Sigh \Sigh\, v. t.

1. To exhale (the breath) in sighs.

Never man sighed truer breath. --Shak.

2. To utter sighs over; to lament or mourn over.

Ages to come, and men unborn, Shall bless her name, and sigh her fate. --Pior.

3. To express by sighs; to utter in or with sighs.

They . . . sighed forth proverbs. --Shak.

The gentle swain . . . sighs back her grief. --Hoole.

Source: Webster's Revised Unabridged Dictionary (1913)