Sharp; having a fine edge or point; as, a keen razor, or a razor with a keen edge.

Acute of mind; sharp; penetrating; having or expressing mental acuteness; as, a man of keen understanding; a keen look; keen features.

Piercing; penetrating; cutting; sharp; -- applied to cold, wind, etc.; as, a keen wind; the cold is very keen.

To sharpen; to make cold.

A prolonged wail for a deceased person. Cf. Coranach.

To wail as a keener does.

a funeral lament sung with loud wailing

express grief verbally; "we lamented the death of the child"