Webster's Revised Unabridged Dictionary · 1913

Ruling

Ruling , adjective

1.
Predominant; chief; reigning; controlling; as, a ruling passion; a ruling sovereign.
2.
Used in marking or engraving lines; as, a ruling machine or pen.

Ruling , noun

1.
The act of one who rules; ruled lines.
2.
(Law) A decision or rule of a judge or a court, especially an oral decision, as in excluding evidence.