billet-doux/ˌbili ʹdooh, ˌbeeyay/ noun (pl billets-doux /-ʹdooh(z)/)

• cater
• catercorner
• cater-cornered
• Caterpillar
• caterpillar
• caterwaul
• catfish
• cat flap
• catgut
• Cath.
• cath-
• Cathar
• catharsis
• cathartic
• Cathay
• cathead
• cathedral
• Catherine wheel
• catheter
• catheterize
• cathexis
• cathode
• cathode ray
• cathode-ray tube
• Catholic