Cynosure (noun)

cy·no·sure  \ˈsī-nə-ˌshu̇r, ˈsi-\

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1. A center of attention or interest. 2. Something that serves to guide.

Related word: Cynosural (adjective)

Word history: First appeared in English as a name for the constellation Ursa Minor (the Little Dipper)

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Information compiled and quoted directly from “100 More Words Every High School Graduate Should Know” and the Merriam-Webster online dictionary.