Definitions for PHI
faɪphi

Princeton's WordNetRate this definition:4.0 / 2 votes

1. phinoun

   the 21st letter of the Greek alphabet

WiktionaryRate this definition:3.3 / 3 votes

1. phinoun

   The twenty-first letter of the Classical and Modern Greek, the twenty-second letter of Old and Ancient.

2. phinoun

   A visual illusion caused by lights turning on and off in a sequential pattern that implies motion.

3. phinoun

   The symbol for the golden ratio.

WikipediaRate this definition:0.0 / 0 votes

1. Phi

   Phi (; uppercase Φ, lowercase φ or ϕ; Ancient Greek: ϕεῖ pheî [pʰéî̯]; Modern Greek: φι fi [fi]) is the 21st letter of the Greek alphabet. In Archaic and Classical Greek (c. 9th century BC to 4th century BC), it represented an aspirated voiceless bilabial plosive ([pʰ]), which was the origin of its usual romanization as ⟨ph⟩. During the later part of Classical Antiquity, in Koine Greek (c. 4th century BC to 4th century AD), its pronunciation shifted to that of a voiceless bilabial fricative ([ɸ]), and by the Byzantine Greek period (c. 4th century AD to 15th century AD) it developed its modern pronunciation as a voiceless labiodental fricative ([f]). The romanization of the Modern Greek phoneme is therefore usually ⟨f⟩. It may be that phi originated as the letter qoppa (Ϙ, ϙ), and initially represented the sound /kʷʰ/ before shifting to Classical Greek [pʰ]. In traditional Greek numerals, phi has a value of 500 (φʹ) or 500,000 (͵φ). The Cyrillic letter Ef (Ф, ф) descends from phi. As with other Greek letters, lowercase phi (encoded as the Unicode character U+03C6 φ GREEK SMALL LETTER PHI) is used as a mathematical or scientific symbol. Some uses, such as the golden ratio, require the old-fashioned 'closed' glyph, which is separately encoded as the Unicode character U+03D5 ϕ GREEK PHI SYMBOL.

ChatGPTRate this definition:0.0 / 0 votes

1. phi

   Phi (Φ or φ) is a Greek letter often used in several disciplines such as mathematic, physics and arts. Its specific definition or use can vary depending on the context: 1. Mathematics: It is frequently used to represent the golden ratio (approximately 1.618033988749895). 2. Physics: It might represent phase angles, magnetic flux, or the azimuthal angle in spherical coordinates. 3. Arts: In reference to the golden ratio, it's used in aesthetics to achieve balance and harmony in design. 4. Statistics: In statistics, specifically in probability theory, it is used to denote the standard normal cumulative distribution. 5. Engineering: It can be used to denote the phase of a wave in signal processing. 6. In biology, it can represent a phase of a virus life cycle. 7. In computer science, it is used in the phi function to denote an anonymous function in lambda calculus. Therefore the meaning and uses can be many and varied. It is always important to consider the context in which it's used to better understand the implications.

WikidataRate this definition:3.0 / 1 vote

1. Phi

   Phi, pronounced FY or sometimes FEE in English, and in modern Greek, is the 21st letter of the Greek alphabet. In modern Greek, it represents, a voiceless labiodental fricative. In Ancient Greek it represented, an aspirated voiceless bilabial plosive. In the system of Greek numerals it has a value of 500 or 500,000. The Cyrillic letter Ef arose from Φ.

Editors ContributionRate this definition:0.0 / 0 votes

1. Phi

   Sans En absence de S'il n'y a pas

   Reprendre le médicament si (symbole phi) de saigment.

   
   

   Submitted by anonymous on February 12, 2020  

Suggested ResourcesRate this definition:1.0 / 1 vote

1. phi

   The phi symbol -- In this Symbols.com article you will learn about the meaning of the phi symbol and its characteristic.

2. PHI

   What does PHI stand for? -- Explore the various meanings for the PHI acronym on the Abbreviations.com website.

Surnames Frequency by Census RecordsRate this definition:0.0 / 0 votes

1. PHI

   According to the U.S. Census Bureau, Phi is ranked #44653 in terms of the most common surnames in America.
   
   The Phi surname appeared 481 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 0 would have the surname Phi.
   
   85.8% or 413 total occurrences were Asian.
   6.6% or 32 total occurrences were White.
   3.1% or 15 total occurrences were of two or more races.
   2% or 10 total occurrences were of Hispanic origin.

Matched Categories

1. • Letter

Usage in printed sourcesFrom: 

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Anagrams for PHI »

1. hip HIP

2. hip

How to pronounce PHI?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say PHI in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of PHI in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of PHI in Pythagorean Numerology is: 6

Examples of PHI in a Sentence

1. Eric Rivera:

   We appreciate the willingness of the national office of Delta Sigma Phi to step in and address these issues and take action with us. We hope that through these actions, when the time is right, they will bring a chapter back to SDSU and be productive members of our community.

2. Eric Rivera:

   There is no place in our campus community for the type of ongoing behaviors displayed by those involved with this fraternity chapter, we appreciate the willingness of the national office of Delta Sigma Phi to step in and address these issues and take action with us. We hope that through these actions, when the time is right, they will bring a chapter back to SDSU and be productive members of our community.

3. Buffalo State President Katherine Conway-Turner:

   Buffalo State College is aware of and continues to support the City of Buffalo Police Department’s investigation into an allegation of hazing involving Alpha Phi Alpha and Bradley D’Oyley at an off-campus location. While the investigation is conducted, the campus chapter of Alpha Phi Alpha has been suspended by both the college and the fraternity’s national governing body.

4. Bill Stackman:

   We are extremely concerned about the events that were occurring at the Phi Gamma Delta fraternity, as part of the investigations, we will hold anyone accountable who is found to have willfully ignored or violated university regulations.

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=PHI
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Phi
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Phi
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=PHI
6. ^ Surnames Frequency by Census Records
   https://www.census.gov/topics/population/genealogy/data/2010_surnames.html
7. ^ Usage in printed sources
   https://books.google.com/ngrams/graph?content=PHI