Added 9 October 2026 activating noun Categories: ActionsUncommon Words noun ! Definition from WordNet 3.1, Princeton University. More about activating at Wordnik → Where our words come from → The activity of causing to have energy and be active. adjective Causing motion or action or change. Related Words: actuatingcausativeenergizingactuationboostingcheckingdial-indriveeffectuatingelicitationenableenabled Back to today's word