Phi is the twenty-first letter of the Greek alphabet.
In Archaic and Classical Greek (c. 9th to 4th century BC), it represented an aspirated voiceless bilabial plosive ([pʰ]), … See more

In lowercase
The lowercase letter φ (or its variant, ϕ or ɸ) is often used to represent the following:
• The letter … See more

In Unicode, there are multiple forms of the phi letter:
In ordinary Greek text, the character U+03C6 φ is used exclusively, though this character has considerable glyphic variation, sometimes represented with a glyph more like the … See more

• F, f: Ef (Latin)
• Ф, ф: Ef (Cyrillic)
• Psi and phi type figurine
• Փ (Armenian) See more

• The dictionary definition of Φ at Wiktionary
• The dictionary definition of φ at Wiktionary
• The dictionary definition of phi at Wiktionary
• Media related to Phi (letter) at … See more