Phi

Definition: Phi

Phi

Noun

1. The 21st letter of the Greek alphabet.

Date "phi" was first used in popular English literature: sometime before 1838. (references)

Specialty Definitions: Phi

Domain	Definitions
Statistics	The correlation coefficient when both of the variables are measured as dichotomies. Source: European Union. (references)
Source: compiled by the editor from various references; see credits.

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Specialty Definition: Phi

(From Wikipedia, the free Encyclopedia)

Phi (uppercase Φ, lowercase φ) is the name of:

The 21^st letter of the Greek alphabet (unrelated to ordinality but rather to linguistics, it's associated with letter f in the Latin alphabet).
In engineering, the diameter symbol is often referred to as "phi". This symbol is used to indicate the diameter of a circular section, for example means the diameter of the circle is 14 inches or millimeters, depending on the context.
The Greek letter used to represent the so-called Golden mean and the Euler totient function.
In spherical coordinates phi is usually used to represent the angle to the z axis.
The golden mean (1+√5)/2 is often called Φ, φ being 1/Φ.

Phi (letter)

(From Wikipedia, the free Encyclopedia)

Phi (Φ φ) is the 21st letter of the Greek alphabet and has a numeric value of 500.

The lower-case letter φ is used as a symbol for:

Euler's phi function φ(n)
The golden mean.
In physics and mathematics, the value of an angle.
The work function.
The empty set.
In signal processing, the phase of a sinusoidal signal.

The upper-case letter Φ is used as a symbol for:

magnetic flux

See also other things named phi, Phi phenomenon.

See also:

Alpha - Beta - Gamma - Delta - Epsilon - Digamma - Zeta - Eta - Theta - Iota - Kappa - Lambda - Mu - Nu - Xi - Omicron - Pi - San - Qoppa - Rho - Sigma - Tau - Upsilon - Phi - Chi - Psi - Omega - Sampi

Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Phi."

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Abbreviations & Acronyms: Phi

The following table is compiled from various sources, across various languages. When English abbreviations or acronyms come from a non-English source, this is noted.
Entry	Source	Expression	Field
PHI	Danish	Glukosefosfat isomerase	Medicine
PHI	English	Potential hazard index	N/A
PHI	German	Philippinen	Geography
Source: compiled by the editor, based on several corpora (additional references).

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Crosswords: Phi

English words defined with "phi": phi coefficient, phi correlation. (references)

Specialty definitions using "phi": Bacillus Phages, Bacteriophage phi 6, Bacteriophage phi X 174 ♦ coarse sand, Cystoviridae ♦ fine sand, fine silt ♦ latitude correction ♦ Peptide PHI, phi index, phi tone, Pseudomonas Phages ♦ Rankine's theory, RNA Phages. (references)

Non-English Usage: "Phi" is also a word in the following language with the English translation in parentheses.

Hungarian (Phi).

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Modern Usage: Phi

Domain	Usage
Screenplays	I was developed at the University of Chicago, where I graduated Phi Beta Capsule. (Osmosis Jones; writing credit: Marc Hyman)
Source: compiled by the editor from various references; see credits.

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Commercial Usage: Phi

Domain	Title
Books	Carnegie Denied: Communities Rejecting Carnegie Library Construction Grants, 1898-1925 (Beta Phi Mu Monograph Series) (reference) Daring to Find Our Names: The Search for Lesbigay Library History (Beta Phi Mu Monograph Series, No 5) (reference) Libraries and Scholarly Communication in the United States: The Historical Dimension (Beta Phi Mu Monograph Series) (reference) Market Guide / ProVestor Plus Company Report for Philippine Long Distance - PHI [DOWNLOAD: PDF] (reference) Publishing and Readership in Revolutionary France and America: A Symposium at the Library of Congress, Sponsored by the Center for the Book and the European Division (Beta Phi Mu Monograph Series) (reference) (more book examples)

Periodicals	Phi Kappa Phi Forum (reference) Phi Latin - Version 5.3 - Cd-rom (reference) (more periodical examples)

Music	Phi in the Sky [EXPLICIT LYRICS] [EP] (reference) (more classical music examples; more popular music examples)
Source: compiled by the editor from various references; see credits.

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Image Slideshow: Phi

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Photo Album: Phi

Thumbnail	Description & Credit	Thumbnail	Description & Credit
	Sigma Phi fraternity house, Williams College.Credit: Library of Congress.		Alpha Delta Phi House, Ann Arbor, Michigan.Credit: Library of Congress.
	College Street (Sigma Phi), Burlington, Vt.Credit: Library of Congress.		Chi Phi House, Amherst, Mass.Credit: Library of Congress.
	Phi Delta Theta House, Amherst College.Credit: Library of Congress.		Phi Gamma Delta House, Amherst College.Credit: Library of Congress.
	Phi Kappa Psi House, Amherst College.Credit: Library of Congress.		Phi Sigma House, Wellesley College, Mass.Credit: Library of Congress.
Source: compiled by the editor from various references; see credits.

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Non-Fiction Usage: Phi

Subject	Topic	Quote
Health		Because fluid transport is HC03 dependent, the role of pHi in determining fluid transport will be examined. (references)
Source: compiled by the editor from ICON Group International, Inc.; see credits.

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Usage Frequency: Phi

"Phi" is generally used as a noun (proper) -- approximately 45.24% of the time. "Phi" is used about 42 times out of a sample of 100 million words spoken or written in English. Its rank is based on over 700,000 words used in the English language. Some parts-of-speech are not covered due to the samples used by the British National Corpus. (note: percents less than one-hundredth of one percent have been omitted)

Parts of Speech	Percent	Usage per 100 Million Words	Rank in English
Noun (proper)	45.24%	19	80,337
Unclassified Items	33.33%	14	93,893
Noun (plural)	11.9%	5	157,705
Noun (singular)	4.76%	2	245,945
Adjective (general or positive)	4.76%	2	245,945
Total	100.00%	42	N/A

Source: compiled by the editor from several corpora; see credits.

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Name Usage Frequency: Phi

The following table summarizes the usage of "phi" based on a population census conducted in the United States. Ranks and frequencies are based on all names reported and classified.

Name	Usage/Gender	Usage per 100 million Persons	Rank in USA
Phi	Last name	100	79,857
Source: compiled by the editor from several corpora; see credits.

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Expressions: Phi

Expressions using "phi": Bacteriophage phi 6 ♦ Bacteriophage phi X 174 ♦ Peptide PHI ♦ phi beta house ♦ phi beta kappa ♦ phi coefficient ♦ phi correlation ♦ phi index ♦ phi tone. Additional references.
Hyphenated Usage
	Beginning with "phi": phi-based, Phi-coefficient, Phi-phi, phi-scores.
	Ending with "phi": half-phi, Phi-phi, quarter-phi.
Source: compiled by the editor from various references; see credits.

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Frequency of Internet Keywords: Phi

The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com.

Expression	Frequency per Day	Expression	Frequency per Day
omega psi phi	747	iota phi theta	73
alpha phi alpha	515	zeta phi beta sorority inc	72
phi	453	phi sigma kappa	68
phi beta sigma	418	phi delta theta	67
zeta phi beta	368	phi gamma delta	63
phi delta kappan	165	phi phi	62
phi phi island	148	alpha phi alpha fraternity inc	60
phi theta kappa	147	delta sigma phi	58
phi beta kappa	147	nhung phi	58
sigma phi epsilon	123	phi kappa phi	56
pi beta phi	108	phi sigma sigma	52
alpha phi	106	phi sigma theta	47
omega psi phi fraternity	100	alpha sigma phi	47
alpha phi omega	95	omega psi phi fraternity inc	46
pi kappa phi	87	theta phi alpha	43
zeta phi beta sorority	86	phi beta sigma fraternity	43
gamma phi beta	83	phi kappa psi	42
phi mu	81	alpha delta phi	40
phi delta kappa	80	number phi	37
alpha phi alpha fraternity	78	phi kappa tau	37
Source: compiled by the editor from various references; see credits.

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Modern Translations: Phi

Language		Translations for "phi"; alternative meanings/domain in parentheses.
Danish		phi (tip), fi. (various references)

Dutch		fi. (various references)

Finnish		fii. (various references)

French		phi (Philippines), ignominie, horreur. (various references)

German		Phi-Koeffizient (Phi-coefficient), Phi (Philippines). (various references)

Greek		φ-συντελεστής (Phi-coefficient), τόνος φι (f tone, phi tone), τόνος f (f tone, phi tone), δείκτης phi (phi index). (various references)

Hungarian		Phi. (various references)

Italian		phi. (various references)

Pig Latin		iphay

Portuguese		Impaciência (eagerness, impatience, petulance). (various references)

Romanian		principala bibliotecã a universitãţii (phi beta house), cãmin al membrilor societãţii "phi beta kappa". (various references)

Russian		Фита. (various references)

Spanish		phi, Fi. (various references)

Swedish		Fi. (various references)

Turkish		Yunan Alfabesinin Yirmibirinci Harfi. (various references)
Source: compiled by the editor from various translation references.

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Derivations & Misspellings: Phi

Derivations
	Words beginning with "phi": phial, phials, philabeg, philabegs, philadelphus, philadelphuses, philander, philandered, philanderer, philanderers, philandering, philanders, philanthropic, philanthropical, philanthropically, philanthropies, philanthropist, philanthropists, philanthropoid, philanthropoids, philanthropy, philatelic, philatelically, philatelies, philatelist, philatelists, philately, philharmonic, philharmonics, philhellene, philhellenes, philhellenic, philhellenism, philhellenisms, philhellenist, philhellenists, philibeg, philibegs, philippic, philippics, philistia, philistine, philistines, philistinism, philistinisms, phillumenist, phillumenists, philodendra, philodendron, philodendrons, philological. (additional references)
	Words ending with "phi": scyphi, tophi. (additional references)
	Words containing "phi": acidophil, acidophile, acidophiles, acidophilic, acidophils, actinomorphic, actinomorphies, adrenocorticotrophic, adrenocorticotrophin, adrenocorticotrophins, agraphia, agraphias, agraphic, ailurophile, ailurophiles, allelomorphic, allelomorphism, allelomorphisms, allographic, allomorphic, allomorphism, allomorphisms, amphibia, amphibian, amphibians, amphibious, amphibiously, amphibiousness, amphibiousnesses, amphibole, amphiboles, amphibolies, amphibolite, amphibolites, amphibologies, amphibology, amphiboly, amphibrach, amphibrachic, amphibrachs, amphictyonic, amphictyonies, amphictyony, amphidiploid, amphidiploidies, amphidiploids, amphidiploidy, amphimacer, amphimacers, amphimixes, amphimixis. (additional references)
Misspellings
	"Phi" is suggested in spellcheckers for the following: ahii, aphi, bhi, Ephah, ephe, Ffi, fi, Hhi, Hpai, Hphi, Hpu, Iphy, Khi, Mpho, Nhi, ohi, Ophey, paha, pahit, pbi, pci, pdi, Pgii, pha, Phab, Phac, phad, phae, phal, Phao, phar, phay, phaz, phb, phd, phe, phea, phee, pheew, phem, pher, phet, phg, Phhor, phia, phib, phic, phid, phie, phig, phil, phim, phin, phio, phis, phit, phiw, phiy, pho, phor, phr, pht, phu, phur, Phy, Phya, phywe, p'i, pih, piha, pii, pli, pmi, Pohai, poho, ppi, prho, pri, Pshe, ptha, pui, Pvi, Pxi, rhi, rph, Sphi, Tpha, Zhi. (additional references)
Source: compiled by the editor, based on several corpora (additional references).

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Rhyming with "Phi"

# of Phoneme Matches	Pronunciation	Word(s) rhyming with "phi" (pronounced fī")
2	f ī"	defy.
Source: compiled by the editor (additional references); see credits.

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Anagrams: Phi

Scrabble® Enable2K-Verified Anagrams
	Direct Anagrams: hip.
	Words within the letters "h-i-p"
	-1 letter: hi, pi.
	Words containing the letters "h-i-p"
	+1 letter: chip, hips, phis, phiz, pish, pith, ship, whip.
	+2 letters: aphid, aphis, apish, chimp, chips, chirp, hippo, hippy, phial, pinch, pitch, piths, pithy, ships, spahi, thrip, tophi, unhip, whips, whipt.
	+3 letters: aphids, aspish, bishop, caliph, ceriph, chimps, chippy, chirps, chirpy, chopin, cipher, ephebi, ephori, haptic, harpin, hatpin, hempie, hiccup, hipped, hipper, hippie, hippos, hirple, hispid, hoping, huipil, hyping, hypnic, imphee, impish, kaliph, mishap, mopish, ophite, orphic, painch, palish, pariah, parish, perish, phalli, phasic, phasis, phatic, phenix, phials, phizes, phobia, phobic, phonic, photic, phylic, physic, physis, pished, pishes, pitchy, pithed, plight, plinth, poisha, polish, popish, punish, raphia, raphis, reship, rupiah, scyphi, shrimp, siphon, spahis, sphinx, spilth, thrips, unship, uphill, uppish, whippy.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.