Title: Sinéad
Content:  Sinéad is an Irish feminine name. It is derived from the French Jeanette, which is cognate to the English Janet, itself a feminine form of the Hebrew Yohannan, "God forgave/God gratified". In English, Sinéad is also commonly spelled Sinead. The name is generally translated into English as either Jane or Jennifer, or as the Scottish female name Jean. Sinéad may refer to:
Title: Sinan
Content:  Sinan (Arabic: سنان sinān) is a name found in Arabic and Early Arabic, meaning spearhead. The name may also be related to the Ancient Greek name Sinon. It was used as a male given name.
Title: Mount Sinai (Bible)
Content:  "... there is nothing that requires us to explain Him as a modified moon-god. It is improbable that the name Sinai is derived from that of the Sumerian Zen (older Zu-en), Akkadian Sin, the moon-god worshiped at Ur (in his form Nannar) and at Harran, since there is no indication that the name Sin was ever employed by the Canaanites or the Semitic nomads of Palestine. It is much more likely that the name Sinai is connected with the place-name Sin, which belongs to a desert plain in Sinai as well as to a Canaanite city in Syria and perhaps to a city 
Title: Sini (name)
Content:  The name Sini means blue. It originated as a variant of the name Sinikka, which in turn comes from Sininen, the Finnish word for blue.
Title: Sin (mythology)
Content:   Sīn or Suen ( EN.ZU, pronounced Su'en, Sen, Sîn),, and in Aramaic syn, syn’, or even shr 'moon', or Nannar ( DŠEŠ.KI, DNANNAR) was the god of the moon and planet in the Mesopotamian religions of Sumer, Akkad, Assyria, Babylonia and Aram, and was worshipped into the Islamic period in Harran. Nanna is the son of Enlil and Ninlil, and was identified with the Semitic Sīn. The two chief seats of worship were Ur in the south of Mesopotamia and Harran in the north. A moon god by the same name was later worshipped in South Arabia.
Title: Singidunum
Content:  migrated to the southern parts of the Pannonian Basin, with one group remaining in Transylvania, while the other moved to the modern Belgrade area. The latest archaeological and linguistic researches showed that the Sinds inhabited the region in the 5th and 4th century BC. Another possibility is that it is a composite name the first part of which (Sin-gi) means "Old prayer" ("sean guí" in modern Irish), implying that this was originally a site of Celtic religious significance, in addition to becoming a fortress (dun). This would also fit in with the ancient Celtic burial practice remnants there. However, etymologically speaking this is extremely unlikely. The Modern Irish form is sean-ghuí, and is from Old Irish sen-guidi, guidi being from the Common Celtic stem guedyo- "beg, implore, pray". Given the age of the name Singidunum, the expected form would be something like *senogwedyodunom, Latinised as *Senoguediodunum.
Title: Names of China
Content: Arabic: Ṣīn صين ; French/English (prefix of adjectives): Sino- (i.e. Sino-American), Sinitic (the Chinese language family). ; Hebrew: Sin סין ; An tSín ; Sīnae ; Sìona  Sīnae was an ancient Greek and Roman name for some people who dwelt south of the Seres (Serica) in the eastern extremity of the inhabitable world. References to the Sinae include mention of a city that the Romans called Sēra Mētropolis, which may be modern Chang'an. The Latin prefixes Sino- and Sin- as well as words such as Sinica, which are traditionally used to refer to China or the Chinese, came from Sīnae. It 
Title: Maad a Sinig
Content:  Maad a Sinig  (variations : Mad a Sinig, 'Maad Sine, Maat Sine, Bour Sine, Bur Sine, etc.) means king of Sine. The ancient Kingdom of Sine, now part of Senegal, was a pre-colonial Serer kingdom. Their kings were titled Maad or Maad (also spelled Mad or Maat). The royal title Maad is sometimes used interchangeably with their ancient kings and landowners - the Lamanes. Between 1350 and 1969 (the Guelowar period - the last maternal dynasty in Serer country), more than fifty Serer kings have been crowned Maad a Sinig.
Title: Sinmara
Content:  Viktor Rydberg proposed that the name Sinmara is composed of sin, meaning "sinew", and mara, meaning  "the one that maims", noting that mara is related to the verb merja (citing Guðbrandur Vigfússon's dictionary), Rydberg concludes that the name Sinmara thus means "the one who maims by doing violence to the sinews," thus identifying her as Nidhad's wife, who orders Völund's sinews cut to prevent his escape, in the eddic poem Völundarkviða.
Title: Saadia (given name)
Content:  Saadia (سعدية, סעדיה) or Saadiya is an Arabic, Hebrew and Berber masculine and feminine proper name. It is used as a forename and more rarely as a surname. According to some classical rabbinical sources, the name derives from the Hebrew verb Sa'ad (סעד, support), and means "God has supported". According to researchers at the Wissenschaft des Judentums, however, it is an artificially Hebrewised form of the Arabic name Sa'id (Happy سعيد). It is indeed common that in Arabic speaking countries, people called Saadia are also known as Sa'id. Saadia Gaon, who seems to have been the first to have borne this forename, and is often just referred to as "Saadia," without further explanation; signing himself 'Sa'id ben Yosef "at the beginning of his career, he went on, in his work 'Sefer haGalouï' to call himself "Saadyahou" (סעדיהו) ; Moses ibn Ezra also uses the form Sa'adel (סעדאל).

Question: what is the meaning of the name sinead?
Answer: God forgave/God gratified.