From BiblePortal Wikipedia

Webster's Dictionary [1]

(1): ( v. i.) To express sorrow audibly; to make mournful outcry; to weep.

(2): ( v. t.) To choose; to select.

(3): ( n.) Loud weeping; violent lamentation; wailing.

(4): ( v. t.) To lament; to bewail; to grieve over; as, to wail one's death.

King James Dictionary [2]

WAIL, To lament to moan to bewail.

Or if no more her absent lord she wails--

WAIL, To weep to express sorrow audibly.

Therefore I will wail and howl.  Micah 1 .

WAIL, n. Loud weeping violent lamentation.

Holman Bible Dictionary [3]

Grief And MourningRepentance

Kitto's Popular Cyclopedia of Biblial Literature [4]