Amir al-Mu'minin laƙabi ne na Larabci wanda galibi ana fassara shi " Kwamandan Mai Aminci " ko" Jagora na masu aminci ". 'Yan Shi'a sun yi imani da cewa taken wajan na Ali bn Abi Talib ne, kamar yadda ya saba da wasu, yayin da Sunnis suka yi imanin cewa ana iya amfani da taken ga wasu, gami da wasu khalifofi da malamai. Amfani da taken ba dole ba ne ya nuna da'awar Khalifanci kamar yadda aka saba ɗauka ya zama, amma ya bayyana wani nau'in jagoranci na gwagwarmaya wanda wataƙila an haɗa shi da kalifa amma kuma yana iya nuna alamar iko ƙarƙashin hakan. Musamman Ottoman sultans, sunyi ƙarancin amfani da shi. Haka kuma, mazan sun yi amfani da kalmar ba wanda bai ce su kalifa ba ne. Amir al-Mu'minin an goge shi kamar Miramolinus, daga nan Miramolino na Italiyanci, Miramolin na Harshen Sipaniyanci da Miramolin na Fotigal, a cikin Girkanci Byzantine: ἀμερμουμνῆς amermoumnês.