The Collaborative International Dictionary of English v.0.48:

Burrow \Bur"row\, v. i. [imp. & p. p. Burrowed; p. pr. & vb.
   n. Burrowing.]
   1. To excavate a hole to lodge in, as in the earth; to lodge
      in a hole excavated in the earth, as conies or rabbits.
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   2. To lodge, or take refuge, in any deep or concealed place;
      to hide.
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            Sir, this vermin of court reporters, when they are
            forced into day upon one point, are sure to burrow
            in another.                           --Burke.
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   Burrowing owl (Zool.), a small owl of the western part of
      North America (Speotyto cunicularia), which lives in
      holes, often in company with the prairie dog.
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The Collaborative International Dictionary of English v.0.48:

Burrow \Bur"row\, n. [See 1st Borough.]
   1. An incorporated town. See 1st Borough.
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   2. A shelter; esp. a hole in the ground made by certain
      animals, as rabbits, for shelter and habitation.
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   3. (Mining) A heap or heaps of rubbish or refuse.
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   4. A mound. See 3d Barrow, and Camp, n., 5.
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The Collaborative International Dictionary of English v.0.48:

Camp \Camp\ (k[a^]mp), n. [F. camp, It. campo, fr. L. campus
   plant, field; akin to Gr. kh^pos garden. Cf. Campaign,
   Champ, n.]
   1. The ground or spot on which tents, huts, etc., are erected
      for shelter, as for an army or for lumbermen, etc. --Shak.
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   2. A collection of tents, huts, etc., for shelter, commonly
      arranged in an orderly manner.
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            Forming a camp in the neighborhood of Boston. --W.
                                                  Irving.
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   3. A single hut or shelter; as, a hunter's camp.
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   4. The company or body of persons encamped, as of soldiers,
      of surveyors, of lumbermen, etc.
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            The camp broke up with the confusion of a flight.
                                                  --Macaulay.
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   5. (Agric.) A mound of earth in which potatoes and other
      vegetables are stored for protection against frost; --
      called also burrow and pie. [Prov. Eng.]
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   6. [Cf. OE. & AS. camp contest, battle. See champion.] An
      ancient game of football, played in some parts of England.
      --Halliwell.
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   Camp bedstead, a light bedstead that can be folded up onto
      a small space for easy transportation.

   camp ceiling (Arch.), a kind ceiling often used in attics
      or garrets, in which the side walls are inclined inward at
      the top, following the slope of the rafters, to meet the
      plane surface of the upper ceiling.

   Camp chair, a light chair that can be folded up compactly
      for easy transportation; the seat and back are often made
      of strips or pieces of carpet.

   Camp fever, typhus fever.

   Camp follower, a civilian accompanying an army, as a
      sutler, servant, etc.

   Camp meeting, a religious gathering for open-air preaching,
      held in some retired spot, chiefly by Methodists. It
      usually last for several days, during which those present
      lodge in tents, temporary houses, or cottages.

   Camp stool, the same as camp chair, except that the stool
      has no back.

   Flying camp (Mil.), a camp or body of troops formed for
      rapid motion from one place to another. --Farrow.

   To pitch (a) camp, to set up the tents or huts of a camp.


   To strike camp, to take down the tents or huts of a camp.
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WordNet (r) 3.0 (2006):

burrow
    n 1: a hole made by an animal, usually for shelter [syn:
         burrow, tunnel]
    v 1: move through by or as by digging; "burrow through the
         forest" [syn: burrow, tunnel]

Moby Thesaurus II by Grady Ward, 1.0:

138 Moby Thesaurus words for "burrow":
   abri, anchor, antre, be incognito, beat the bushes, billet at,
   bivouac, bore, bunker, camp, cave, cavern, colonize,
   come to anchor, couch, cove, covert, croodle, cuddle, delve, den,
   dig, dig out, dike, disappear, domesticate, dredge, drill, drive,
   drop anchor, drop from sight, dugout, earth, ensconce,
   establish residence, excavate, excavation, explore, forage, form,
   foxhole, frisk, furrow, go into hiding, go through, go to ground,
   go underground, gouge, gouge out, groove, grot, grotto, grub, hide,
   hide away, hide out, hive, hole, hole up, hunt, inhabit,
   keep house, lair, lie, lie close, lie doggo, lie hid, lie low,
   lie snug, live at, locate, lodge, look around, look round,
   look through, lower, masquerade, mew, mine, moor, move, nest,
   nestle, nose around, nuzzle, park, people, perch, play peekaboo,
   poke, poke around, populate, pry, quarry, relocate,
   remain anonymous, research, reside, retire from sight, roost, root,
   run, sap, scoop, scoop out, scrabble, scrape, scratch, search,
   search through, set up housekeeping, set up shop, settle,
   settle down, sewer, shovel, sink, sit down, sit tight,
   smell around, snug, spade, squat, stand, stay at, stay in hiding,
   strike root, subterrane, subway, take cover, take residence at,
   take root, take up residence, trench, trough, tunnel, warren,
   wear a mask