1. [n]  a flight maneuver; aircraft tips laterally about its longitudinal axis (especially in turning); "the plane went into a steep bank"
2. [n]  a building in which commercial banking is transacted; "the bank is on the corner of Nassau and Witherspoon"
3. [n]  a container (usually with a slot in the top) for keeping money at home; "the coin bank was empty"
4. [n]  a financial institution that accepts deposits and channels the money into lending activities; "he cashed a check at the bank"; "that bank holds the mortgage on my home"
5. [n]  an arrangement of similar objects in a row or in tiers; "he operated a bank of switches"
6. [n]  a long ridge or pile; "a huge bank of earth"
7. [n]  sloping land (especially the slope beside a body of water); "they pulled the canoe up on the bank"; "he sat on the bank of the river and watched the currents"
8. [n]  a slope in the turn of a road or track; the outside is higher than the inside in order to reduce the effects of centrifugal force
9. [n]  the funds held by a gambling house or the dealer in some gambling games; "he tried to break the bank at Monte Carlo"
10. [n]  a supply or stock held in reserve for future use (especially in emergencies)
11. [v]  have confidence or faith in; "We can trust in God"; "Rely on your friends"; "bank on your good education"; "I swear by my grandmother's recipes"
12. [v]  cover with ashes, of fires, to control the rate of burning
13. [v]  enclose with a bank; "bank roads"
14. [v]  tip laterally; of boats and aircraft
15. [v]  put into a bank account
16. [v]  be in the banking business
17. [v]  act as the banker in a game or in gambling
18. [v]  do business with a bank or keep an account at a bank; "Where do you bank in this town?"

BANK is a 4 letter word that starts with B.

1. \Bank\ (b[a^][ng]k), n. [OE. banke; akin to E. bench, and
   prob. of Scand. origin.; cf. Icel. bakki. See {Bench}.]
   1. A mound, pile, or ridge of earth, raised above the
      surrounding level; hence, anything shaped like a mound or
      ridge of earth; as, a bank of clouds; a bank of snow.
            They cast up a bank against the city. --2 Sam. xx.
                                                  15.
   2. A steep acclivity, as the slope of a hill, or the side of
      a ravine.
   3. The margin of a watercourse; the rising ground bordering a
      lake, river, or sea, or forming the edge of a cutting, or
      other hollow.
            Tiber trembled underneath her banks.  --Shak.
   4. An elevation, or rising ground, under the sea; a shoal,
      shelf, or shallow; as, the banks of Newfoundland.
   5. (Mining)
      (a) The face of the coal at which miners are working.
      (b) A deposit of ore or coal, worked by excavations above
          water level.
      (c) The ground at the top of a shaft; as, ores are brought
          to bank.
   {Bank beaver} (Zo["o]l.), the otter. [Local, U.S.]
   {Bank swallow}, a small American and European swallow
      ({Clivicola riparia}) that nests in a hole which it
      excavates in a bank.
   

2. \Bank\, v. t. [imp. & p. p. {Banked}(b[a^][ng]kt); p. pr. &
   vb. n. {Banking}.]
   1. To raise a mound or dike about; to inclose, defend, or
      fortify with a bank; to embank. ``Banked well with
      earth.'' --Holland.
   2. To heap or pile up; as, to bank sand.
   3. To pass by the banks of. [Obs.] --Shak.
   {To bank a fire}, {To bank up a fire}, to cover the coals or
      embers with ashes or cinders, thus keeping the fire low
      but alive.
   

3. \Bank\, n. [Prob. fr. F. banc. Of German origin, and akin
   to E. bench. See {Bench}.]
   1. A bench, as for rowers in a galley; also, a tier of oars.
            Placed on their banks, the lusty Trojan sweep
            Neptune's smooth face, and cleave the yielding deep.
                                                  --Waller.
   2. (Law)
      (a) The bench or seat upon which the judges sit.
      (b) The regular term of a court of law, or the full court
          sitting to hear arguments upon questions of law, as
          distinguished from a sitting at Nisi Prius, or a court
          held for jury trials. See {Banc}. --Burrill.
   3. (Printing) A sort of table used by printers.
   4. (Music) A bench, or row of keys belonging to a keyboard,
      as in an organ. --Knight.
   

4. \Bank\, n. [F. banque, It. banca, orig. bench, table,
   counter, of German origin, and akin to E. bench; cf. G. bank
   bench, OHG. banch. See {Bench}, and cf. {Banco}, {Beach}.]
   1. An establishment for the custody, loan, exchange, or
      issue, of money, and for facilitating the transmission of
      funds by drafts or bills of exchange; an institution
      incorporated for performing one or more of such functions,
      or the stockholders (or their representatives, the
      directors), acting in their corporate capacity.
   2. The building or office used for banking purposes.
   3. A fund from deposits or contributions, to be used in
      transacting business; a joint stock or capital. [Obs.]
            Let it be no bank or common stock, but every man be
            master of his own money.              --Bacon.
   4. (Gaming) The sum of money or the checks which the dealer
      or banker has as a fund, from which to draw his stakes and
      pay his losses.
   5. In certain games, as dominos, a fund of pieces from which
      the players are allowed to draw.
   {Bank credit}, a credit by which a person who has given the
      required security to a bank has liberty to draw to a
      certain extent agreed upon.
   {Bank of deposit}, a bank which receives money for safe
      keeping.
   {Bank of issue}, a bank which issues its own notes payable to
      bearer.
   

5. \Bank\, v. t.
   To deposit in a bank.
   

6. \Bank\, v. i.
   1. To keep a bank; to carry on the business of a banker.
   2. To deposit money in a bank; to have an account with a
      banker.
   

7. \Bank\, n.
   A group or series of objects arranged near together; as, a
   bank of electric lamps, etc.
   

8. \Bank\, n. (A["e]ronautics)
   The lateral inclination of an a["e]roplane as it rounds a
   curve; as, a bank of 45[deg] is easy; a bank of 90[deg] is
   dangerous.
   

9. \Bank\, v. i. (A["e]ronautics)
   To tilt sidewise in rounding a curve; -- said of a flying
   machine, an a["e]rocurve, or the like.
   

1. The slope of land bordering the river.
2. The margins of a channel.
3. Lateral boundary of a stream, especially between low and high water marks.