Added 10 October 2026 girder /ˈɡɜːdə(ɹ)/ noun Categories: ThingsRare Words In Latin: trabs Wiktionary noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about girder at Wordnik → Where our words come from → A beam made usually of steel; a main support in a structure. Related Words: beamtankboxcaissoncanistercribcasingchamberdiskplatetrussdiskette Back to today's word