1. The size of a book whose pages are made by folding a sheet of paper twice to form four leaves
   - quarto

Type of: size

Encyclopedia: 4to

• senior high
• senior high school
• senior lecturer
• senior master sergeant
• senior moment
• senior pilot
• senior status
• senior vice president
• seniority
• seniti
• senna
• Senna alata
• Senna alexandrina
• Senna auriculata
• Senna marilandica
• Senna obtusifolia
• Senna occidentalis
• Sennacherib
• Sennenhunde
• sennet
• Sennett
• sennight
• sennit
• sens
• sensate