Added 9 October 2026 hailstorm noun Categories: NatureRare Words noun ! Definition from WordNet 3.1, Princeton University. More about hailstorm at Wordnik → Where our words come from → A storm during which hail falls. Origin From hail + storm. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: hailstonesintestinesrainstormhailthunderstormhailstonedownpourwindstormtornadocloudburstsstormrainstorms Back to today's word