wallet

Etymology

From Middle English walet (“bag, knapsack”), of uncertain origin. Possibly from an assumed Old Northern French *walet (“roll; bag; knapsack”), from Proto-Germanic *wal- (“to roll”). More at walk, well, wallow.

noun

1. A small case, often flat and often made of leather, for keeping money (especially paper money), credit cards, etc.
   The thief stole all the money and credit cards out of the old man's wallet.
2. (by extension, informal) A person's bank account or assets.
   It's unknown if the pro running back's recent sex scandal will hit him in the wallet or not.
3. (computing, finance) An e-wallet or digital wallet.
4. A thick case or folder with plastic sleeves in which compact discs may be stored.
   I won an auction online for a cheap CD wallet.
5. (archaic) A bag or pouch.
   He brought with him a large wallet with some provisions for the road.
6. (slang) A person's buttocks (the area of the body nearest where one keeps one's wallet).
   He fell down and landed on his wallet.