Real Dictionary

bank areas and masses
countable noun: A bank of ground is a raised area of it with a flat top and one or two sloping sides.
countable noun: A bank of something is a long high mass of it.
countable noun: A bank of things, especially machines, switches, or dials, is a row of them, or a series of rows.
countable noun: The banks of a river, canal, or lake are the raised areas of ground along its edge.

bank finance and storage
countable noun: A bank is a building where a bank offers its services.
countable noun: A bank is an institution where people or businesses can keep their money.
verb: If you bank money, you pay it into a bank.
verb: If you bank with a particular bank, you have an account with that bank.

bank in Accounting
noun: A bank is a place or organization that looks after people's money.

bank in American English 1
an establishment for receiving, keeping, lending, or, sometimes, issuing money, and making easier the exchange of funds by checks, notes, etc.
intransitive verb: to build up in or form banks, as clouds or snow
noun: a long pile or heap; mass
transitive verb: to border with or like a bank; embank

bank in American English 2
a long mound or heap, as of ground, clouds, or snow; ridge
to heap dirt around for protection from cold, light, etc.; embank
to take the form of a bank or banks
intransitive verb: to keep money in or have an account with a bank
noun: an institution for receiving, lending, exchanging, and safeguarding money and, in some cases, issuing notes and transacting other financial business
transitive verb: to deposit in a bank

bank in American English 3
a bench for rowers in a galley
noun: an arrangement of objects in a line or in tiers
transitive verb: to arrange in a bank

bank in British English 1
noun: an institution offering certain financial services, such as the safekeeping of money, conversion of domestic into and from foreign currencies, lending of money at interest, and acceptance of bills of exchange
verb: to deposit (cash, cheques, etc) in a bank

bank in British English 2
noun: a long raised mass, esp of earth; mound; ridge
verb: to form into a bank or mound

bank in British English 3
noun: an arrangement of objects, esp similar objects, in a row or in tiers
verb: to arrange in a bank

bank other verb uses
verb: When an aircraft banks, one of its wings rises higher than the other, usually when it is changing direction.