nightynoun (pl -ies) (pl nighties)

• quernstone
• querulous
• query
• query language
• quest
• question
• questionable
• question mark
• question-master
• questionnaire
• question time
• quetzal
• Quetzalcoatl
• quetzales
• queue
• queue-jump
• quibble
• quiche
• quick
• quick as a flash
• quicken
• quickfire
• quick-freeze
• quickie
• quicklime