Added 10 October 2026 arundo noun Categories: PlantsObscure Words noun ! Definition from WordNet 3.1, Princeton University. More about arundo at Wordnik → Where our words come from → Any of several coarse tall perennial grasses of most warm areas: reeds. Related Words: arundinariaarecaceaearoideaeaglaonemaeryngiumhordeumcatharanthusandrographiscenchruseriogonum Back to today's word