contronymPronunciation: /ˈkɒntrənɪm/ (also contranym)Definition of contronym noun a word with two opposite meanings, e.g. sanction (which can mean both ‘a penalty for disobeying a law’ and ‘official permission or approval for an action’). Origin: 1960s: blend of contra- and -onym, on the pattern of synonym and antonymcontronym in other Oxford dictionaries Definition of contronym in the US English dictionary
