pentad /penˈtad/

1. A set of five things
2. A period of five years or five days
3. An atom, element or radical with a combining power of five

• dog-cheap
• dog collar
• dog collars
• dog-crab
• dog-crabs
• dog-daisies
• dog-daisy
• dog days
• doge
• dog-ear
• dog-eared
• dog-ears
• dog eat dog
• dog-eat-dog
• douceness
• doucenesses
• doucepere
• douceperes
• doucer
• doucest
• doucet
• doucets
• douceur
• douceurs
• douche