Darken (a.) To make dark or black; to deprive of light; to obscure; as, a darkened room.

Darken (a.) To render dim; to deprive of vision.

Darken (a.) To cloud, obscure, or perplex; to render less clear or intelligible.

Darken (a.) To cast a gloom upon.

Darken (a.) To make foul; to sully; to tarnish.

Darken (v. i.) To grow or darker.