octodecimo /ok-tō-desˈi-mō/

1. Having eighteen leaves to the sheet
2. Contracted 18mo, often read eighteenmo

A book with sheets so folded

• outed
• outedge
• outedges
• outer
• outer bar
• outer bars
• outer dead centre
• outer garments
• Outer House
• outermost
• outer planet
• outer planets
• outers
• outer space
• outer ward
• outerwear
• outerwears
• outface
• outfaced
• outfaces
• outfacing
• outfall
• outfalls
• outfangthief
• outfangthieves