monotheism به انگلیسی
From Longman Dictionary
mon‧o‧the‧is‧m /ˈmɒnəʊθiːɪzəm $ ˈmɑːnə-/ noun [uncountable]
the belief that there is only one God
اعتقاد به اینکه تنها یک خدا وجود دارد
Example
But for much else in polytheism and monotheism it is of more limited value
The compulsive drive towards a mystical mode of religion is particularly interesting in the three faiths of historical monotheism