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

• bluebell
• bluebells
• Blue Beret
• blueberries
• blueberry
• bluebird
• bluebirds
• blue-black
• blue-blacks
• Blue Blanket
• blue blood
• blue-blooded
• blue bloods
• blue-bonnet
• blue-bonnets
• blue book
• blue books
• bluebottle
• bluebottles
• blue box
• blue boxes
• bluebreast
• bluebuck
• bluebucks
• bluecap