quintile /kwinˈtīl/

1. Any of four values which divide the items of a frequency distribution into five groups
2. Any of the five groups so formed
3. An aspect of 72º between two heavenly bodies (astrology)

• thunderier
• thunderiest
• thundering
• Thundering Legion
• thunderingly
• thunderless
• thunderlike
• thunder-master
• thunderous
• thunderously
• thunderousness
• thunderousnesses
• thunder peal
• thunder peals
• thunder-plump
• thunder-plumps
• thunders
• thunder sheet
• thunder sheets
• thundershower
• thundershowers
• thunderstone
• thunderstones
• thunderstorm
• thunderstorms