to back the field

from The Collaborative International Dictionary of English v.0.48
Back \Back\ (b[a^]k), v. t. [imp. & p. p. {Backed} (b[a^]kt); p.
   pr. & vb. n. {Backing}.]
   [1913 Webster]
   1. To get upon the back of; to mount.
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            I will back him [a horse] straight.   --Shak.
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   2. To place or seat upon the back. [R.]
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            Great Jupiter, upon his eagle backed,
            Appeared to me.                       --Shak.
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   3. To drive or force backward; to cause to retreat or recede;
      as, to back oxen.
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   4. To make a back for; to furnish with a back; as, to back
      books.
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   5. To adjoin behind; to be at the back of.
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            A garden . . . with a vineyard backed. --Shak.
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            The chalk cliffs which back the beach. --Huxley.
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   6. To write upon the back of; as, to back a letter; to
      indorse; as, to back a note or legal document.
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   7. To support; to maintain; to second or strengthen by aid or
      influence; as, to back a friend. "The Parliament would be
      backed by the people." --Macaulay.
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            Have still found it necessary to back and fortify
            their laws with rewards and punishments. --South.
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            The mate backed the captain manfully. --Blackw. Mag.
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   8. To bet on the success of; -- as, to back a race horse.
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   {To back an anchor} (Naut.), to lay down a small anchor ahead
      of a large one, the cable of the small one being fastened
      to the crown of the large one.

   {To back the field}, in horse racing, to bet against a
      particular horse or horses, that some one of all the other
      horses, collectively designated "the field", will win.

   {To back the oars}, to row backward with the oars.

   {To back a rope}, to put on a preventer.

   {To back the sails}, to arrange them so as to cause the ship
      to move astern.

   {To back up}, to support; to sustain; as, to back up one's
      friends.

   {To back a warrant} (Law), is for a justice of the peace, in
      the county where the warrant is to be executed, to sign or
      indorse a warrant, issued in another county, to apprehend
      an offender.

   {To back water} (Naut.), to reverse the action of the oars,
      paddles, or propeller, so as to force the boat or ship
      backward.
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from The Collaborative International Dictionary of English v.0.48
field \field\ (f[=e]ld), n. [OE. feld, fild, AS. feld; akin to
   D. veld, G. feld, Sw. f[aum]lt, Dan. felt, Icel. fold field
   of grass, AS. folde earth, land, ground, OS. folda.]
   1. Cleared land; land suitable for tillage or pasture;
      cultivated ground; the open country.
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   2. A piece of land of considerable size; esp., a piece
      inclosed for tillage or pasture.
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            Fields which promise corn and wine.   --Byron.
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   3. A place where a battle is fought; also, the battle itself.
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            In this glorious and well-foughten field. --Shak.
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            What though the field be lost?        --Milton.
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   4. An open space; an extent; an expanse. Esp.:
      (a) Any blank space or ground on which figures are drawn
          or projected.
      (b) The space covered by an optical instrument at one
          view; as, wide-field binoculars.
          [1913 Webster + PJC]

                Without covering, save yon field of stars.
                                                  --Shak.
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                Ask of yonder argent fields above. --Pope.
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   5. (Her.) The whole surface of an escutcheon; also, so much
      of it is shown unconcealed by the different bearings upon
      it. See Illust. of {Fess}, where the field is represented
      as gules (red), while the fess is argent (silver).
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   6. An unresticted or favorable opportunity for action,
      operation, or achievement; province; room.
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            Afforded a clear field for moral experiments.
                                                  --Macaulay.
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   7. (Sports) An open, usually flat, piece of land on which a
      sports contest is played; a playing field; as, a football
      field; a baseball field.

   Syn: playing field, athletic field, playing area.
        [PJC]

   8. Specifically: (Baseball) That part of the grounds reserved
      for the players which is outside of the diamond; -- called
      also {outfield}.
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   9. A geographic region (land or sea) which has some notable
      feature, activity or valuable resource; as, the diamond
      fields of South Africa; an oil field; a gold field; an ice
      field.
      [WordNet 1.6]

   10. A facility having an airstrip where airplanes can take
       off and land; an airfield.

   Syn: airfield, landing field, flying field, aerodrome.
        [WordNet 1.6]

   11. A collective term for all the competitors in any outdoor
       contest or trial, or for all except the favorites in the
       betting.
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   12. A branch of knowledge or sphere of activity; especially,
       a learned or professional discipline; as, she's an expert
       in the field of geology; in what field did she get her
       doctorate?; they are the top company in the field of
       entertainment.

   Syn: discipline, subject, subject area, subject field, field
        of study, study, branch of knowledge.
        [WordNet 1.6]

   Note: Within the master text files of this electronic
         dictionary, where a word is used in a specific sense in
         some specialized field of knowledge, that field is
         indicated by the tags: () preceding that sense of the
         word.
         [PJC]

   13. A location, usually outdoors, away from a studio or
       office or library or laboratory, where practical work is
       done or data is collected; as, anthropologists do much of
       their work in the field; the paleontologist is in the
       field collecting specimens. Usually used in the phrase

   {in the field}.
      [WordNet 1.6]

   14. (Physics) The influence of a physical object, such as an
       electrically charged body, which is capable of exerting
       force on objects at a distance; also, the region of space
       over which such an influence is effective; as, the
       earth's gravitational field; an electrical field; a
       magnetic field; a force field.
       [PJC]

   15. (Math.) A set of elements within which operations can be
       defined analagous to the operations of addition,
       subtraction, multiplication, and division on the real
       numbers; within such a set of elements addition and
       multiplication are commutative and associative and
       multiplication is distributive over addition and there
       are two elements 0 and 1; a commutative division ring;
       as, the set of all rational numbers is a field.
       [WordNet 1.6]

   Note: Field is often used adjectively in the sense of
         belonging to, or used in, the fields; especially with
         reference to the operations and equipments of an army
         during a campaign away from permanent camps and
         fortifications. In most cases such use of the word is
         sufficiently clear; as, field battery; field
         fortification; field gun; field hospital, etc. A field
         geologist, naturalist, etc., is one who makes
         investigations or collections out of doors. A survey
         uses a field book for recording field notes, i.e.,
         measurment, observations, etc., made in field work
         (outdoor operations). A farmer or planter employs field
         hands, and may use a field roller or a field derrick.
         Field sports are hunting, fishing, athletic games, etc.
         [1913 Webster]

   {Coal field} (Geol.) See under {Coal}.

   {Field artillery}, light ordnance mounted on wheels, for the
      use of a marching army.

   {Field basil} (Bot.), a plant of the Mint family ({Calamintha
      Acinos}); -- called also {basil thyme}.

   {Field colors} (Mil.), small flags for marking out the
      positions for squadrons and battalions; camp colors.

   {Field cricket} (Zool.), a large European cricket ({Gryllus
      campestric}), remarkable for its loud notes.

   {Field day}.
       (a) A day in the fields.
       (b) (Mil.) A day when troops are taken into the field for
           instruction in evolutions. --Farrow.
       (c) A day of unusual exertion or display; a gala day.

   {Field driver}, in New England, an officer charged with the
      driving of stray cattle to the pound.

   {Field duck} (Zool.), the little bustard ({Otis tetrax}),
      found in Southern Europe.

   {Field glass}. (Optics)
       (a) A binocular telescope of compact form; a lorgnette; a
           race glass.
       (b) A small achromatic telescope, from 20 to 24 inches
           long, and having 3 to 6 draws.
       (c) See {Field lens}.

   {Field lark}. (Zool.)
       (a) The skylark.
       (b) The tree pipit.

   {Field lens} (Optics), that one of the two lenses forming the
      eyepiece of an astronomical telescope or compound
      microscope which is nearer the object glass; -- called
      also {field glass}.

   {Field madder} (Bot.), a plant ({Sherardia arvensis}) used in
      dyeing.

   {Field marshal} (Mil.), the highest military rank conferred
      in the British and other European armies.

   {Field officer} (Mil.), an officer above the rank of captain
      and below that of general.

   {Field officer's court} (U.S.Army), a court-martial
      consisting of one field officer empowered to try all
      cases, in time of war, subject to jurisdiction of garrison
      and regimental courts. --Farrow.

   {Field plover} (Zool.), the black-bellied plover ({Charadrius
      squatarola}); also sometimes applied to the Bartramian
      sandpiper ({Bartramia longicauda}).

   {Field spaniel} (Zool.), a small spaniel used in hunting
      small game.

   {Field sparrow}. (Zool.)
       (a) A small American sparrow ({Spizella pusilla}).
       (b) The hedge sparrow. [Eng.]

   {Field staff} (Mil.), a staff formerly used by gunners to
      hold a lighted match for discharging a gun.

   {Field vole} (Zool.), the European meadow mouse.

   {Field of ice}, a large body of floating ice; a pack.

   {Field}, or {Field of view}, in a telescope or microscope,
      the entire space within which objects are seen.

   {Field magnet}. see under {Magnet}.

   {Magnetic field}. See {Magnetic}.

   {To back the field}, or {To bet on the field}. See under
      {Back}, v. t. -- {To keep the field}.
       (a) (Mil.) To continue a campaign.
       (b) To maintain one's ground against all comers.

   {To lay against the field} or {To back against the field}, to
      bet on (a horse, etc.) against all comers.

   {To take the field} (Mil.), to enter upon a campaign.
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