The word(s) "nity" appears 31 time(s) in 31 verse(s) in Quran in Mohsin Khan translation.

(11) It is they who are the believers in truth. For them are grades of dignity with their Lord, and Forgiveness and a generous provision (Paradise).

(12) Mankind were but one community (i.e. on one religion - Islamic Monotheism), then they differed (later); and had not it been for a Word that went forth before from your Lord, it would have been settled between them regarding what they differed .

(13) And for every Ummah (a community or a nation) there is a Messenger; when their Messenger comes, the matter will be judged between them with justice, and they will not be wronged.

(14) Say (O Muhammad صلى الله عليه وسلم): "I have no power over any harm or profit to myself except what Allah may will. For every Ummah (a community or a nation), there is a term appointed; when their term comes, neither can they delay it nor can they advance it an hour (or a moment)." (Tafsir Al-Qurtubi).

(15) Was there any town (community) that believed (after seeing the punishment), and its Faith (at that moment) saved it (from the punishment)? (The answer is none) - except the people of Yunus (Jonah); when they believed, We removed from them the torment of disgrace in the life of the (present) world, and permitted them to enjoy for a while.

(16) And if your Lord had so willed, He could surely have made mankind one Ummah [nation or community (following one religion i.e. Islam)] but they will not cease to disagree.

(17) Thus have We sent you (O Muhammad صلى الله عليه و سلم) to a community before whom other communities have passed away, in order that you might recite unto them what We have revealed to you, while they disbelieve in the Most Gracious (Allah) Say: "He is my Lord! La ilaha illa Huwa (none has the right to be worshipped but He)! In Him is my trust, and to Him will be my return with repentance."

(18) And upon Allah is the responsibility to explain the Straight Path . But there are ways that turn aside (such as Paganism, Judaism and Christianity). And had He willed, He would have guided you all (mankind).

(19) 'Adn (Eden) Paradise (Gardens of Eternity) which they will enter, under which rivers flow, they will have therein all that they wish. Thus Allah rewards the Muttaqun (the pious - See V.2:2).

(20) And verily, We have sent among every Ummah (community, nation) a Messenger (proclaiming): "Worship Allah (Alone), and avoid (or keep away from) Taghut (all false deities i.e. do not worship Taghut besides Allah)." Then of them were some whom Allah guided and of them were some upon whom the straying was justified. So travel through the land and see what was the end of those who denied (the truth).