fi — meaning in English
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English meaning
- phi noun The 21st letter of the Greek alphabet (Φ, φ), often used as a symbol in science and mathematics.
Senses
fi is used for these senses in English:
- phi Φ, the 21st letter of the Euclidean and modern Greek alphabet, usually romanized as "ph".
phi — full definition
- noun The 21st letter of the Greek alphabet (Φ, φ), often used as a symbol in science and mathematics.
- noun The golden ratio, approximately 1.618, often represented by this letter.