اليَتِيْمَ

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

اليَتِيْمُ is the natural state of this definite noun and becomes اليَتِيْمَ due to it being the: 1) المَفْعُوْلُ بِهِ object of a verb or 2) اسْمُ of إِنَّ or 3) خَبَرُ of كَانَ or 4) المَفْعُوْلُ فِيْهِ adverb of time or place or 5) المَفْعُوْلُ لَهُ noun that gives the reason for doing a thing or 6) المَفْعُوْلُ مَعَهُ noun that comes after the و which means “along with” or 7) المَفْعُوْلُ المُطْلَقُ is the مَصْدَرٌ of the verb occurring in the sentence or 8) الحَالُ adverb of manner or 9) التَّمْيِيْزُ noun that specifies the meaning of a vague word or 10) المُسْتَثْنَى noun that comes after إِلَّا meaning “except” or 11) المُنَادَى noun of calling

Orphan

To become an orphan, become without father before puberty or maturity, become isolated, lonely, solitary, weary, jaded, become motherless (beast), become orphan, become widow

Grammatical analysis of اليَتِيْمَ  
اسْمٌ مَنْصُوْبٌ بِالفَتْحَةِ الزَّاهِرَةِ 
مَعْرِفَةٌمُفْرَدٌمُذَكَّرٌمَنْصُوْبٌي ت مبَاب سَمِعَفَعِيْلٌيَتِمَ يَيْتَمُاسْمٌاِسْمُ الْمُبَالَغَةِ
DefiniteSingularMasculineAccusativeRootthe OrphanPatternسNounNoun of intensity 
the isolated
the lonelyاسْمٌ فَاعِلٌ
the solitaryActive participle
the weary 
the jaded 
Surah/Below are the 3 verses in the holy Quran containing the accusative nounاليَتِيْمَ
Verse
 
89-17Nay, but you do not honor the orphans (treat with kindness and generosity)كَلَّا بَلْ لَّا تُكْرِمُوْنَ اليَنِيْمَ
93-9So as for the orphan, do not subjugateفَأَمَّا اليَتِيْمَ فَلَا تَقْهَرْ
107-2That is, he who repulses the orphanفَذَلِكَ الَّذِي يَدُعُّ اليَتِيْمَ