Added 9 October 2026 co-ordination noun Categories: Obscure Words noun ! Definition from Wiktionary (CC BY-SA). More about co-ordination at Wordnik → Where our words come from → Alternative spelling of coordination. Related Words: co-ordinatecoordinatingco-operationcoordinatedco-ordinatorcooperationcollaborationcoordinativeconcertedcoordinationconcertliaison Back to today's word