wallet /wolˈit/

1. A small folding case for holding money, papers, etc, a pocketbook
2. A bag for tools
3. A bag for carrying necessaries on a journey
4. A bag with the opening at the middle and a pouch at each end
5. Anything protuberant and hanging loosely (Shakespeare)

• op shop
• op shops
• OPSI
• opsimath
• opsimathies
• opsimaths
• opsimathy
• opsin
• opsins
• opsiometer
• opsiometers
• -opsis
• opsomania
• opsomaniac
• opsomaniacs
• opsomanias
• opsonic
• opsonin
• opsonins
• opsonise
• opsonised
• opsonises
• opsonising
• opsonium
• opsoniums