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Φ

HistoryArchaic local variants Diacritics and other symbolsDiacriticsάὰᾶἀἁᾱᾰϊᾳσ̌LigaturesϗϛNumerals (Attic)ϛ (6)ϟ (90)ϡ (900) Related topicsUse as scientific symbolsOrthographyRomanizationCyrillizationPhi ( ; uppercase Φ, lowercase φ or ϕ; Ancient Greek: ϕεῖpheî; Modern Greek: φιfi) is the twenty-first letter of the Greek alphabet.

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