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Phi (letter) - Definition and Overview |
| Related Words: Rd, Rfd, Acknowledgment, Advice, Airmail, Alphabet, Answer, Art, Article, Autograph, Back, Beard, Belly, Billet, Blueprint, Body, Cap |
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Phi (upper case Φ, lower case φ), pronounced fee or fie (depending on context and, often, personal inclination), is the 21st letter of the Greek alphabet. In the system of Greek numerals it has a value of 500.
The lower-case letter φ is used as a symbol for:
The upper-case letter Φ is used as a symbol for:
See also phi phenomenon.
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