phi /fī or fē/

1. The twenty-first letter (Φ, φ) of the Greek alphabet, orig as aspirated p (as in upheave), now pronounced as f and transliterated ph
2. As a Greek numeral φˈ = 500, ˌφ = 500000

PHI

Permanent health insurance

• four-flushed
• four-flusher
• four-flushers
• four-flushes
• four-flushing
• fourfold
• fourfoldness
• fourfoldnesses
• four-foot
• four-footed
• four-foot way
• four-function calculator
• four-function calculators
• fourgon
• fourgons
• four-handed
• four-horse
• four-hours
• Fourier analysis
• Fourierism
• Fourierist
• Fourieristic
• Fourier principle
• Fourier series
• four-inched