Added 10 October 2026 kail noun Categories: PlantsFood & DrinkRare Words noun ! Definition from WordNet 3.1, Princeton University. More about kail at Wordnik → Where our words come from → A hardy cabbage with coarse curly leaves that do not form a head. Coarse curly-leafed cabbage. Related Words: colecolewortborecolekalecabbagekaleyardvictualskailkiverscallion Back to today's word