(v. i.) 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. t.) To exhale (the breath) in sighs.

(3):

(v. i.) Hence, to lament; to grieve.

(4):

(v. i.) To make a sound like sighing.

(5):

(v. i.) Figuratively, a manifestation of grief; a lan/ent.

(6):

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

(7):

(v. t.) To express by sighs; to utter in or with sighs.

(8):

(v. t.) To utter sighs over; to lament or mourn over.

Bibliography Information
Webster, Noah. Entry for 'Sigh'. Noah Webster's American Dictionary. https://www.studylight.org/dictionaries/eng/web/s/sigh.html. 1828.

Bible Dictionaries Sigh

Webster's Dictionary

Bible Dictionaries
Sigh