yaktubna ("they [feminine] write"). Nūn is also used as the prefix for first-person plural imperfective/present tense verbs. Thus huwwa yaktub ("he writes") → naḥnu naktub ("we write"). Punjabi/Saraiki nūn It is retroflex nasal consonantal sound symbol, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , and the equivalent X-SAMPA symbol is n`. Like all the retroflex consonants, the IPA symbol is formed by adding a rightward-pointing hook extending from the bottom of an en (the letter used for the corresponding alveolar consonant). It is similar to , the letter for the palatal nasal, which has a leftward-pointing hook extending from the bottom of the left stem, and to , the letter for the velar nasal, which has a leftward-pointing hook extending from the bottom of the right stem. Saraiki uses the letter ⟨ݨ⟩ for . It is a compound of nūn and rre (⟨ڑ⟩). For example: کݨ مݨ، چھݨ چھݨ، ونڄݨ۔ Social media campaign (2014) After the fall of Mosul, ISIL demanded Assyrian Christians in the city to convert to Islam, pay tribute, or face execution. ISIL begun marking homes of Christian residents with the letter nūn for Nassarah ("Nazarene"). Thousands of Christians, Yazidis (the latter of whom were given only the choice of conversion or death) and other, mostly Shi'a, Muslims, as well as any Muslim whose allegiance was to their home country (whom ISIL consider to be apostates) abandoned their homes and land. In response to the persecution of Christians and Yazidis by ISIL, an international social media campaign was launched to raise global awareness of the plight of religious minorities in Mosul, making use of the letter (nun)—the mark that ISIL troops spray painted on properties owned by Christians. Some Christians changed their profile pictures on Facebook and Twitter to pictures of the letter as a symbol of support. The letter , in relation to this social media campaign, is being called the "Mark of the Nazarene" from (; plural ), a normative Arabic term disparagingly used by ISIL to brand Christians. The word naṣārā/nosrim designates Christians in both Arabic, Aramaic and Hebrew. The more common term used to refer to Christians in Modern Standard Arabic is masihi (, plural ). Character encodings See also Nunation Setaceous Hebrew Character (Xestia c-nigrum) - a moth of the family Noctuidae. References Phoenician alphabet Arabic letters Hebrew letters Letters with final