Added 9 October 2026 defining noun Categories: ActionsEveryday Words noun ! Definition from WordNet 3.1, Princeton University. More about defining at Wordnik → Where our words come from → Any process serving to define the shape of something. Related Words: shapingdefinitionalspecifyingspecifyidentificationidentifyidentifyingformulateformulationclarifyingdevisingcharacterize Back to today's word