1. Definition: 1. the fourth caliph of Islam who is considered to be the first caliph by Shiites; he was a cousin and son-in-law of Muhammad; after his assassination Islam was divided into Shiite and Sunnite sects

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1. Definition: 1. last or greatest in an indefinitely large series; "to the nth degree"

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1. Definition: 1. a plane figure with 5 or more points; often used as an emblem

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1. Definition: 1. measuring stick consisting of a strip of wood or metal or plastic with a straight edge that is used for drawing straight lines and measuring lengths

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1. Definition: 1. a person who is older than you are

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1. Definition: 1. an impressive or wonderful example of a particular quality; "the Marines are expected to perform prodigies of valor"

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1. Definition: 1. (often followed by `to') above being affected or influenced by; "he is superior to fear"; "an ignited firework proceeds superior to circumstances until its blazing vitality fades"

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1. Definition: 1. the Arab prophet who, according to Islam, was the last messenger of Allah (570-632)

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1. Definition: 1. a musician who is a consummate master of technique and artistry

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1. Definition: 1. most important element;

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