octodecimo /ok-tō-desˈi-mō/

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

A book with sheets so folded

• travel
• travel agencies
• travel agency
• travel agent
• travel agents
• travelator
• travelators
• traveled
• traveler
• travelers
• traveling
• travelings
• travelled
• traveller
• travellers
• traveller's cheque
• traveller's cheques
• traveller's joy
• traveller's tale
• traveller's tree
• travelling
• Travelling Folk
• Travelling People
• turn one's back on
• turn one's coat