English dictionary
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English noun: sigma | |||
| 1. | sigma (communication) the 18th letter of the Greek alphabet | ||
| Broader (hypernym) | alphabetic character, letter, letter of the alphabet | ||
| Member meronym | Greek alphabet | ||
Based on WordNet 3.0 copyright © Princeton University.
Web design: Orcapia v/Per Bang. English edition: .
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Web design: Orcapia v/Per Bang. English edition: .
2026 onlineordbog.dk