Added 9 October 2026 vespa noun Categories: AnimalsRare Words noun ! Definition from WordNet 3.1, Princeton University. More about vespa at Wordnik → Where our words come from → Type genus of the Vespidae: various hornets and yellow jackets. Related Words: scootyscootrideablescooterprincipessasignoracontadinavelocipedestriennesicilienne Back to today's word