مُذَكِّرٌ

A word in the Arabic language will either be 1) a verb or 2) a noun or 3) a particle – مُذَكِّرٌ is a noun

A noun may either be 1) Definite or indefinite 2) Masculine or feminine 3) Singular, dual or plural 4) Nominative, accusative or genitive

مُذَكِّرٌ is the natural state of this indefinite noun and it is in this state ( مَرْفُوْعٌ) when the noun is: 1) the subject المُبْتَدَأُ or 2) the predicate الخَبَرُ or 3) اسْمُ كَانَ or 4) خَبَرُ إِنَّ or 5) الفَاعِلُ subject of a verb in the active voice or 6) نَائِبُ الفَاعِلِ subject of a verb in the passive voice or 7) it’s a noun of dependent declension a) نَعْتٌ / صِفَطٌ adjectives b) التَّوْكِيْدُ emphatic c) المَعْطُوْفٌ conjunction d) البَدَلُ synonym

Admonisher etc

To remember, commemorate, make mention of, bear in mind, recollect, admonish, praise, preach, extol, honour, give status, recollect.

نَكِرَةٌمُفْرَدٌمُذَكَّرٌمَرْفُوْعٌذ ك ربَابٌ تَفْعِيْلٌذَكَّرَ يُذَكِّرُمُفَعِّلٌاسْمٌاِسْمُ الْفَاعِلِ
IndefiniteSingularMasculineNominativeRootAdmonisherF2PatternNounActive participle
Surah/Below is the only verse in the holy Quran containing the nounمُذَكِّرٌ
Verse
88-21so, remind them, you are only a reminderفَذَكِّرْ إِنَّمَآ أَنْتَ مُذَكِّرٌ