1A sovereign head of state, especially a king, queen, or emperor.‘the reigning monarch’
sovereign, ruler, Crown, crowned head, potentateView synonyms
- ‘this followed an attempt by the deposed monarch to regain his throne’
Late Middle English from late Latin monarcha, from Greek monarkhēs, from monos ‘alone’ + arkhein ‘to rule’.
Are You Learning English? Here Are Our Top English Tips