Sigh

si, v. i. [sighed (sid), sighing.] To make a deep single respiration, esp. as the result or involuntary expre ion of fatigue, exhaustion, grief, sorrow, etc.; to lament, grieve; to make a sound like sighing.— v. t. To utter sighs over, lament or mourn over; expre by sighs. — n. A single deep respiration; long breath; a manifestation of grief or sorrow.