xi /zī, ksī or ksē/

1. The fourteenth letter of the Greek alphabet (Ξ or ξ), corresponding to X
2. As a numeral ξˈ = 60, ˌξ = 60000

• foaminess
• foaminesses
• foaming
• foamingly
• foamings
• foamless
• foam plastics
• foam rubber
• foams
• foamy
• fob
• fobbed
• fobbing
• fobs
• fob-watch
• fob-watched
• fob-watches
• fob-watching
• foc
• FOC
• focaccia
• focaccias
• focal
• focal distance
• focal distances