Yes, the word " nas" is mentioned so many times in the Holy Quran. There's a chapter titled with this word which means " mankind".
In total 11 times in 9 verses: 2 times as Sawm صوم in two verses ١. أَيَّامًا مَّعْدُودَاتٍ فَمَن كَانَ مِنكُم مَّرِيضًا أَوْ عَلَىٰ...
The name Mariam (Mary) is mentioned 34 times . However, She is the only female who is explicitly mentioned in the holy Quran.
This word in particular is mentioned in the holy Quran only once.
thirty two