1. A book to which you can refer for authoritative facts
   - reference book, reference, reference work

Derived forms: books of facts

Type of: book

• Dunkirk
• dunlin
• dunnage
• dunno
• dunnock
• dunny
• Duns Scotus
• duo
• duodecimal
• duodecimal digit
• duodecimal notation
• duodecimal number system
• duodecimal system
• duodecimo
• duodenal
• duodenal smear
• duodenal ulcer
• duodenum
• duologue
• duomo
• duopoly
• dup
• dupe
• duper
• dupery