- savings bank, coin bank, money box, bank - a container (usually with a slot in the top) for keeping money at home; "the coin bank was empty"
--1 is a kind of container
--1 has particulars: piggy bank, penny bank - cashbox, money box, till - a strongbox for holding cash
--2 is a kind of strongbox, deedbox
--2 has particulars: cash register, register