1. Beneath the surface of the sea
   - submarine

See also: subsurface

• chirpiness
• chirpy
• chirr
• chirrup
• chirurgeon
• chirurgical
• chisel
• chisel in
• chisel steel
• chisel-like
• chiseled
• chiseler
• chiselled
• chiseller
• Chisholm Trail
• Chishona
• Chisinau
• Chislev
• chit
• chitchat
• chitin
• chitinous
• chitlings
• chitlins
• chiton