wilco UK /ˈwɪl.kəʊ/US /ˈwɪl.koʊ/exclamation 1noun 1verb 1forms 3 exclamation1 •Indicates agreement and compliance.Wilco, Bravo Six Three will take the north road. Bravo Six Four will take the south road, out. noun1 •A species of South American tree, Anadenanthera colubrina. verb1 •(rare) To give the "wilco" indication. formswilcoed · wilcoing · wilcos