9 letters · 16 points in Scrabble
noun the sound made by something moving rapidly or by steam coming out of a small aperture
noun the act of whistling a tune
noun the act of signalling (e.g., summoning) by whistling or blowing a whistle
originFrom Middle English whistlinge, whystlynge, from Old English hwistlung, equivalent to whistle + -ing.
Etymology from Wiktionary, CC BY-SA 3.0