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

• underprop
• underpropped
• underpropping
• underprops
• under protest
• underquote
• underquoted
• underquotes
• underquoting
• underran
• under-rang
• underrate
• underrated
• underrates
• underrating
• under-report
• under-reported
• under-reporting
• under-reports
• under-representation
• under-represented
• under-ring
• under-ringing
• under-rings
• under-ripe