1. Having a thickness made up of four layers or strands
   "four-ply yarns"

See also: thick

• philosophical system
• philosophical theory
• philosophically
• philosophise
• philosophiser
• philosophising
• philosophize
• philosophizer
• philosophizing
• philosophy
• philosophy department
• philter
• philtre
• phimosis
• Phineas Taylor Barnum
• Phintias
• phish
• phishing
• phishing scam
• phiz
• phizog
• phlebectomy
• phlebitis
• Phlebodium
• Phlebodium aureum