Added 9 October 2026 trailhead noun Categories: PlacesRare Words noun ! Definition from WordNet 3.1, Princeton University. More about trailhead at Wordnik → Where our words come from → The beginning of a trail. Origin From trail + head. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: pathpathwayroutetraildeparturestartingseverancestartbasisbacktrailthresholdtrailbreaking Back to today's word