COSA NOSTRA(noun)Did you mean?Synonyms RhymesDefinitions There is 1 meaning of the phrase Cosa Nostra. Cosa Nostra - as a noun A crime syndicate in the united states; organized in families; believed to have important relations to the sicilian mafia Synonyms (Exact Relations)maffia14mafia10Word Variations & RelationsAnagramsStarts CStarts COStarts COSStarts COSAEnds AEnds RAEnds TRAEnds STRAStarts C & ends AStarts CO & ends AStarts C & ends RAWords containing COSANOSTRAA-Z Proximitiescorythosauruscoryza20coryzal21coryzas21cos5 Cosa Nostra coscinomancies22coscinomancy23coscorobacoscript14coscripted17Add 1 Letter To Make These Words...Wordscontrabasso15