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

• stoozing
• stop
• stop-and-search
• stop at nothing
• stopbank
• stopbanks
• stop bath
• stop baths
• stop by
• stopcock
• stopcocks
• stop codon
• stop codons
• stop-consonant
• stop down
• stope
• stoped
• stopes
• stop-frame camera
• stop-frame cameras
• stopgap
• stopgaps
• stop-go
• stop-gos
• stop hit