der Muslim
Muslim
A male follower of the religion of Islam. The female form is 'die Muslima' (female Muslim).
Als gläubiger Muslim betet er fünfmal am Tag.
As a devout Muslim, he prays five times a day.

Muslim
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Muslim
A male follower of the religion of Islam. The female form is 'die Muslima' (female Muslim).
Als gläubiger Muslim betet er fünfmal am Tag.
As a devout Muslim, he prays five times a day.

'Der Muslim' (the Muslim) belongs to the n-declension. This means that it takes the ending '-en' in the accusative, dative, and genitive singular, as well as throughout the plural. A common mistake is forgetting this ending.
Ich habe gestern einen Muslimen kennengelernt.
I met a Muslim yesterday.
The related adjective is 'muslimisch' (Muslim/Islamic). It is used to describe things that have to do with Islam or its followers, for example culture, traditions, or countries.
Ramadan ist ein muslimischer Fastenmonat.
Ramadan is a Muslim month of fasting.
Common adjectives that describe 'Muslim' are 'gläubig' (devout) or 'praktizierend' (practicing), to describe the degree of religious observance.
Er ist ein praktizierender Muslim und geht regelmäßig in die Moschee.
He is a practicing Muslim and regularly goes to the mosque.
Islamist
'der Muslim' and 'der Islamist' sound similar, but they do not mean the same thing. A 'Muslim' is a male follower of the religion of Islam. That is a religious term. An 'Islamist' is a supporter of Islamism, that is, a political ideology that wants to organize a society or state according to certain religious-political ideas. The term can also be associated with radical positions. The words must not simply be swapped, because otherwise a person or group may be described incorrectly and unfairly. For the religion, you say 'Muslim'; for the political ideology, 'Islamist'.

Ali ist Muslim und feiert mit seiner Familie das Zuckerfest.
Ali is Muslim and celebrates Eid al-Fitr with his family.
In der Nachricht wurde erklärt, dass der Islamist aus politischen Gründen handelte.
The news report explained that the Islamist acted for political reasons.