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)

• OPEC
• op-ed
• opeidoscope
• opeidoscopes
• open
• openable
• open access
• open-access
• open adoption
• open aestivation
• open-air
• open-and-shut
• open a person's eyes
• open-armed
• open book
• plaiter
• plaiters
• plaiting
• plaitings
• plaits
• plan
• planar
• planar diode
• planar diodes
• planarian