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We found 44 dictionaries with English definitions that include the word pentagon:
Click on the first link on a line below to go directly to a page where "pentagon" is defined.

General dictionaries General (31 matching dictionaries)
  1. Pentagon, pentagon, the Pentagon, the pentagon: Merriam-Webster.com [home, info]
  2. pentagon, the Pentagon: Oxford Learner's Dictionaries [home, info]
  3. pentagon: American Heritage Dictionary of the English Language [home, info]
  4. pentagon: Collins English Dictionary [home, info]
  5. Pentagon, pentagon: Vocabulary.com [home, info]
  6. pentagon, the Pentagon: Macmillan Dictionary [home, info]
  7. Pentagon, pentagon: Wordnik [home, info]
  8. pentagon, the Pentagon, the pentagon: Cambridge Advanced Learner's Dictionary [home, info]
  9. Pentagon, pentagon: Wiktionary [home, info]
  10. pentagon: Webster's New World College Dictionary, 4th Ed. [home, info]
  11. pentagon: The Wordsmyth English Dictionary-Thesaurus [home, info]
  12. pentagon: Infoplease Dictionary [home, info]
  13. Pentagon, the pentagon: Dictionary.com [home, info]
  14. pentagon: Online Etymology Dictionary [home, info]
  15. Pentagon, pentagon: UltraLingua English Dictionary [home, info]
  16. pentagon: Cambridge Dictionary of American English [home, info]
  17. Pentagon (Brussels), Pentagon (EP), Pentagon (Japanese band), Pentagon (South Korean band), Pentagon (TV series), Pentagon (USA), Pentagon (United States), Pentagon (Washington Metro), Pentagon (Wiesbaden), Pentagon (band), Pentagon (building), Pentagon (computer), Pentagon (disambiguation), Pentagon (military), Pentagon (novel), Pentagon (shape), Pentagon, The Pentagon (album), The Pentagon, The pentagon: Wikipedia, the Free Encyclopedia [home, info]
  18. Pentagon: Online Plain Text English Dictionary [home, info]
  19. pentagon: Webster's Revised Unabridged, 1913 Edition [home, info]
  20. Pentagon: Rhymezone [home, info]
  21. Pentagon: AllWords.com Multi-Lingual Dictionary [home, info]
  22. pentagon: Webster's 1828 Dictionary [home, info]
  23. pentagon: Hutchinson's Dictionary of Difficult Words [home, info]
  24. pentagon: Free Dictionary [home, info]
  25. pentagon: Hutchinson Dictionaries [home, info]
  26. pentagon: Mnemonic Dictionary [home, info]
  27. pentagon: WordNet 1.7 Vocabulary Helper [home, info]
  28. Pentagon, pentagon: LookWAYup Translating Dictionary/Thesaurus [home, info]
  29. pentagon: Dictionary/thesaurus [home, info]

Art dictionaries Art (2 matching dictionaries)
  1. pentagon: ArtLex Lexicon of Visual Art Terminology [home, info]
  2. Pentagon: Natural Magick [home, info]

Business dictionaries Business (1 matching dictionary)
  1. Pentagon: Construction Term Glossary [home, info]

Computing dictionaries Computing (1 matching dictionary)
  1. Pentagon (shape), pentagon: Encyclopedia [home, info]

Medicine dictionaries Medicine (1 matching dictionary)
  1. pentagon: online medical dictionary [home, info]

Miscellaneous dictionaries Miscellaneous (3 matching dictionaries)
  1. pentagon: Encyclopedia of Graphic Symbols [home, info]
  2. Pentagon: Glossary of Terrorism Terms [home, info]
  3. PENTAGON: Third Eye's Paranormal [home, info]

Science dictionaries Science (3 matching dictionaries)
  1. Pentagon: Eric Weisstein's World of Mathematics [home, info]
  2. pentagon: MATH SPOKEN HERE! [home, info]
  3. pentagon: PlanetMath Encyclopedia [home, info]

Slang dictionaries Slang (2 matching dictionaries)
  1. Pentagon: Totally Unofficial Rap [home, info]
  2. Pentagon: Urban Dictionary [home, info]

(Note: See pentagons for more definitions.)

Quick definitions from Macmillan (
American English Definition British English Definition

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Quick definitions from WordNet (Pentagon)

noun:  a government building with five sides that serves as the headquarters of the United States Department of Defense
noun:  the United States military establishment
noun:  a five-sided polygon

▸ Also see pentagons
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Phrases that include pentagon:   the pentagon, pentagon papers, pentagon tiling, the pentagon papers, construction of regular pentagon, more...

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