Added 10 October 2026 balkline noun Categories: PlacesObscure Words noun ! Definition from WordNet 3.1, Princeton University. More about balkline at Wordnik → Where our words come from → Line across a billiard table behind which the cue balls are placed at the start of a game. Origin From balk + line. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: reanbaulkbalkrendle-balkrandle-balkwracklinehulkingbenchlandtrenchline Back to today's word