As a noun wallet is
a small case, often flat and often made of leather, for keeping money (especially paper money), credit cards, etc.
Not English Billfolder has no English definition. It may be misspelled.
A small case, often flat and often made of leather, for keeping money (especially paper money), credit cards, etc.
(by extension, slang) A person's bank account or assets.
- The thief stole all the money and credit cards out of the old man's wallet .
A thick case or folder with plastic sleeves in which compact discs may be stored.
- It's unknown if the pro running back's recent sex scandal will hit him in the wallet or not.
(archaic) A bag or pouch.
- I won an auction online for a cheap CD wallet .
- He brought with him a large wallet with some provisions for the road.