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Sigma - Meaning, Definition & English Examples

Sigma is the eighteenth letter of the Greek alphabet, often used in mathematics and science to represent summation or standard deviation. It also appears in various academic and technical contexts.

sigma

/ˈsɪɡmə/ /ˈsɪɡmə/

Definition:

The eighteenth letter of the Greek alphabet, often representing summation in mathematics.

Synonyms:

summation, total, sum

Part of Speech:

noun

Antonyms:

alpha, omega

Common Collocations:

sigma notation, sigma male, sigma bond

Derivatives:

sigmas, sigmoid

Usage Tips:

Use "sigma" in math contexts for summation or to refer to the Greek letter in language discussions.

Common Phrases:

six sigma, sigma male, sigma notation

Etymology:

Derived from the Greek letter "σίγμα," originally from Phoenician "šīn."

Examples:

  • 1. The Greek letter sigma is used in many equations.
  • 2. She learned about sigma notation in her math class.
  • 3. The word "sigma" comes from ancient Greek.
  • 4. Some people admire the traits of a sigma male.

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