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List phrases that spell out pi 

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We found 75 dictionaries with English definitions that include the word pi:
Click on the first link on a line below to go directly to a page where "pi" is defined.

General dictionaries General (35 matching dictionaries)
  1. PI, pi: Merriam-Webster.com [home, info]
  2. PI, Pi, pi, pi: Oxford Learner's Dictionaries [home, info]
  3. PI, pi, pi: American Heritage Dictionary of the English Language [home, info]
  4. pi: Collins English Dictionary [home, info]
  5. PI, pi: Vocabulary.com [home, info]
  6. pi: Macmillan Dictionary [home, info]
  7. PI, Pi, Pi, pi, pi, pI: Wordnik [home, info]
  8. pi: Cambridge Advanced Learner's Dictionary [home, info]
  9. P.I, PI, P'i, Pi, pi: Wiktionary [home, info]
  10. pi: Webster's New World College Dictionary, 4th Ed. [home, info]
  11. P.I, pi: The Wordsmyth English Dictionary-Thesaurus [home, info]
  12. pi: Infoplease Dictionary [home, info]
  13. p.i, pi, pi: Dictionary.com [home, info]
  14. pi: Online Etymology Dictionary [home, info]
  15. pi: UltraLingua English Dictionary [home, info]
  16. P.I, P.I. (TV series), PI (disambiguation), PI, P.i, Pi (.hack), Pi (art project), Pi (disambiguation), Pi (film), Pi (instrument), Pi (kana), Pi (letter), Pi (magazine), Pi (mathematical constant), Pi (mathematics), Pi (movie), Pi (number), Pi (soundtrack), Pi (state), Pi (surname), Pi: Wikipedia, the Free Encyclopedia [home, info]
  17. Pi: Online Plain Text English Dictionary [home, info]
  18. pi: Webster's Revised Unabridged, 1913 Edition [home, info]
  19. pi: Rhymezone [home, info]
  20. Pi: AllWords.com Multi-Lingual Dictionary [home, info]
  21. PI, PI: Stammtisch Beau Fleuve Acronyms [home, info]
  22. pi: All About Homonyms [home, info]
  23. pi: Hutchinson's Dictionary of Difficult Words [home, info]
  24. Pi: Encarta® Online Encyclopedia, North American Edition [home, info]
  25. pi: Free Dictionary [home, info]
  26. pi: Hutchinson Dictionaries [home, info]
  27. pi: Mnemonic Dictionary [home, info]
  28. pi: WordNet 1.7 Vocabulary Helper [home, info]
  29. PI, pi: LookWAYup Translating Dictionary/Thesaurus [home, info]
  30. PI: Dictionary/thesaurus [home, info]
  31. pi: American Heritage Dictionary of the English Language [home, info]
  32. pi: Infoplease Dictionary [home, info]
  33. pi: AllWords.com Multi-Lingual Dictionary [home, info]

Art dictionaries Art (5 matching dictionaries)
  1. pi: ArtLex Lexicon of Visual Art Terminology [home, info]
  2. pi: Cook's Thesaurus [home, info]
  3. pi-: A Cross Reference of Latin and Greek Elements [home, info]
  4. PI, Pi: Glossary of Stamp Collecting Terms [home, info]
  5. Pi: Virginia Tech Multimedia Music Dictionary [home, info]

Business dictionaries Business (2 matching dictionaries)
  1. PI, Pi: Construction Term Glossary [home, info]
  2. P.I: Glossary of Trade and Shipping Terms [home, info]

Computing dictionaries Computing (5 matching dictionaries)
  1. PI: Free On-line Dictionary of Computing [home, info]
  2. PI: BABEL: Computer Oriented Abbreviations and Acronyms [home, info]
  3. PI: Computer Telephony & Electronics Dictionary and Glossary [home, info]
  4. PI: I T Glossary [home, info]
  5. Pi (definition), Pi (mathematical constant), Pi (number), pi: Encyclopedia [home, info]

Medicine dictionaries Medicine (8 matching dictionaries)
  1. PI: MedTerms.com Medical Dictionary [home, info]
  2. PI: AIDSinfo Glossary [home, info]
  3. PI, pi: online medical dictionary [home, info]
  4. PI: AIDS Medical Glossary and Drug Chart [home, info]
  5. PI: Glossary of HIV/AIDS Related Terms [home, info]
  6. P.I, PI, Pi (definition), Pi (mathematical constant), Pi (number): Medical dictionary [home, info]
  8. PI: Drug Medical Dictionary [home, info]

Miscellaneous dictionaries Miscellaneous (3 matching dictionaries)
  1. PI, PI, PI: Terminology and Descriptions of Geneaological Words [home, info]
  2. pi: Acronym Finder [home, info]
  3. PI: AbbreviationZ [home, info]

Science dictionaries Science (7 matching dictionaries)
  1. Pi: Eric Weisstein's World of Mathematics [home, info]
  2. pi: Imagine the Universe! Dictionary [home, info]
  3. pi: MATH SPOKEN HERE! [home, info]
  4. PI: Extragalactic Astronomy [home, info]
  5. pi, pi(x): PlanetMath Encyclopedia [home, info]
  6. PI: A Dictionary of Quaternary Acronyms and Abbreviations [home, info]
  7. pi: How Many? A Dictionary of Units of Measurement [home, info]

Slang dictionaries Slang (1 matching dictionary)
  1. P.I, P.I, PI, pi: Urban Dictionary [home, info]

Tech dictionaries Tech (9 matching dictionaries)
  1. pi: Webster's New World Telecom Dictionary [home, info]
  3. pi: High-Energy Astrophysics [home, info]
  4. pi: Electronics [home, info]
  5. PI: Basics of Space Flight Glossary [home, info]
  6. PI: DOD Dictionary of Military Terms: Joint Acronyms and Abbreviations [home, info]
  7. PI: Printed Circuit Design and Manufacturing Glossary [home, info]
  8. PI: Schlumberger Oilfield Glossary [home, info]
  9. pi: Rane Professional Audio Reference [home, info]

(Note: See pis for more definitions.)

Quick definitions from Macmillan (
American English Definition British English Definition

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Quick definitions from WordNet (pi)

noun:  the 16th letter of the Greek alphabet
noun:  the ratio of the circumference to the diameter of a circle
noun:  an antiviral drug used against HIV; interrupts HIV replication by binding and blocking HIV protease; often used in combination with other drugs
noun:  the scientist in charge of an experiment or research project
noun:  someone who can be employed as a detective to collect information
name:  A surname (very rare: popularity rank in the U.S.: #69127)

▸ Also see pis
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Phrases that include pi:   pi mesons, pi dogs, pi hahiroth, pi electron, alpha delta pi, more...

Words similar to pi:   operative, pied, pieing, pies, piing, sherlock, 3.14159265358979323846..., principal investigator, private detective, private eye, private investigator, more...

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