Cos
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Cos is:
- In geography, Kos or Cos (Gr. Kòs), a Greek island in the Dodecanese group of islands, in the Aegean Sea.
- In government, Cos, a commune in the Ariège département in France.
- In government, an abbreviation for Chief of Staff.
- In mathematics, an abbreviation for cosine.
- In computing, it has several meanings.
- In computing, an operating system like DOS.
- In business, an abbreviation for Cost of sales.
- In television, Cos was a 1976 American comedy series starring Bill Cosby.
- In food, it is a variety of lettuce also known as romaine.