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Nor may refer to:

• In grammar, nor is a coordinating conjunction
• Nór, the eponymous founder-king of Norway in Norse mythology.
• Nor (Wicked), a character in the book in Wicked.
• Queen Noor of Jordan, the fourth wife and widow of the late King Hussein of Jordan.
• nor-, a chemical acronym for "stripped-down" molecules lacking groups (such as methyl-groups); for example, noradrenaline.
• NOR Flash Memory, a type of non-volatile computer memory.
• Norma (constellation), standard astronomical abbreviation

NOR may stand for:

• Logical NOR ("Not OR"), a binary operation in logic.
  • NOR gate, an electronic gate that implements a logical NOR.
• Nucleolus organizer region, a chromosomal region around which the nucleolus forms in cell biology.
• Notice of Readiness, a notice in commercial shipping that a vessel has arrived in port and is prepared to conduct cargo operations.
• Norway
• Normanton railway station, England; National Rail station code NOR.