The Collaborative International Dictionary of English v.0.48:

Squat \Squat\, v. t.
   To bruise or make flat by a fall. [Obs.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Squat \Squat\, a.
   1. Sitting on the hams or heels; sitting close to the ground;
      cowering; crouching.
      [1913 Webster]

            Him there they found,
            Squat like a toad, close at the ear of Eve.
                                                  --Milton.
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   2. Short and thick, like the figure of an animal squatting.
      "The round, squat turret." --R. Browning.
      [1913 Webster]

            The head [of the squill insect] is broad and squat.
                                                  --Grew.
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The Collaborative International Dictionary of English v.0.48:

Squat \Squat\ (skw[o^]t), n. (Zool.)
   The angel fish (Squatina angelus).
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Squat \Squat\, v. i. [imp. & p. p. Squatted; p. pr. & vb. n.
   Squatting.] [OE. squatten to crush, OF. esquater, esquatir
   (cf. It. quatto squat, cowering), perhaps fr. L. ex +
   coactus, p. p. of cogere to drive or urge together. See
   Cogent, Squash, v. t.]
   1. To sit down upon the hams or heels; as, the savages
      squatted near the fire.
      [1913 Webster]

   2. To sit close to the ground; to cower; to stoop, or lie
      close, to escape observation, as a partridge or rabbit.
      [1913 Webster]

   3. To settle on another's land without title; also, to settle
      on common or public lands.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Squat \Squat\, n.
   1. The posture of one that sits on his heels or hams, or
      close to the ground.
      [1913 Webster]

   2. A sudden or crushing fall. [Obs.] --Herbert.
      [1913 Webster]

   3. (Mining)
      (a) A small vein of ore.
      (b) A mineral consisting of tin ore and spar. --Halliwell.
          --Woodward.
          [1913 Webster]

   Squat snipe (Zool.), the jacksnipe; -- called also
      squatter. [Local, U.S.]
      [1913 Webster]

WordNet (r) 3.0 (2006):

squat
    adj 1: short and thick; as e.g. having short legs and heavy
           musculature; "some people seem born to be square and
           chunky"; "a dumpy little dumpling of a woman";
           "dachshunds are long lowset dogs with drooping ears"; "a
           little church with a squat tower"; "a squatty red
           smokestack"; "a stumpy ungainly figure" [syn: chunky,
           dumpy, low-set, squat, squatty, stumpy]
    2: having a low center of gravity; built low to the ground [syn:
       squat, underslung]
    n 1: exercising by repeatedly assuming a crouching position with
         the knees bent; strengthens the leg muscles [syn: knee
         bend, squat, squatting]
    2: a small worthless amount; "you don't know jack" [syn: jack,
       doodly-squat, diddly-squat, diddlysquat, diddly-shit,
       diddlyshit, diddly, diddley, squat, shit]
    3: the act of assuming or maintaining a crouching position with
       the knees bent and the buttocks near the heels [syn: squat,
       squatting]
    v 1: sit on one's heels; "In some cultures, the women give birth
         while squatting"; "The children hunkered down to protect
         themselves from the sandstorm" [syn: squat, crouch,
         scrunch, scrunch up, hunker, hunker down]
    2: be close to the earth, or be disproportionately wide; "The
       building squatted low"
    3: occupy (a dwelling) illegally

Moby Thesaurus II by Grady Ward, 1.0:

211 Moby Thesaurus words for "squat":
   Lilliputian, Tom Thumb, abide, adipose, anchor, be enfeoffed of,
   be possessed of, be seated, be seized of, beefy, bend, berth,
   big-bellied, billet at, bivouac, bloated, blocky, blowzy, boast,
   bob, bosomy, bow, brawny, bunk, burly, burrow, buxom, camp, chubby,
   chunky, claim, cohabit, colonize, come to anchor, command,
   corpulent, couch, couchant, cower, crawl, cringe, crouch, crouched,
   curtsy, debased, depressed, distended, domesticate, domicile,
   domiciliate, doss down, drop anchor, duck, dumpy, dwarf, dwarfed,
   dwarfish, dwell, elfin, enjoy, ensconce, establish residence, fat,
   fattish, fill, flat, fleshy, full, genuflection, get down, gross,
   grovel, hang out, have, have and hold, have in hand,
   have tenure of, heavyset, hefty, hippy, hive, hold, hug the earth,
   hunch, hunch down, hunker down, imposing, incipient, inhabit,
   keep house, knee-high, kneeling, knocked flat, kowtow, laid low,
   lie low, lie prone, lie prostrate, lie under, live, live at,
   locate, lodge, low, low-built, low-hung, low-level, low-leveled,
   low-lying, low-set, low-statured, lusty, meager, meaty, midget,
   moor, move, nanoid, neap, nest, nod, obeisance, obese, occupy,
   overweight, park, paunchy, people, perch, plump, podgy, populate,
   portly, possess, potbellied, prone, prostration, pudgy, puffy, pug,
   pugged, pursy, pygmy, recumbent, relocate, remain, reside,
   retrousse, reverence, roly-poly, room, roost, rotund, rudimental,
   rudimentary, runty, salaam, scraggy, scrouch down, scrubby,
   set up housekeeping, set up shop, settle, settle down, short,
   shriveled, shrunk, shrunken, sit down, snub-nosed, square,
   squat on, squattish, squatty, stalwart, stand, stay, stay at,
   stocky, stoop, stooped, stout, strapping, strike root, stubbed,
   stubby, stumpy, stunted, supination, supine, swat, swollen,
   take residence at, take root, take up residence, tenant, thick,
   thick-bodied, thickset, top-heavy, tubby, turned-up, underlie,
   undersize, undersized, unelevated, usucapt, wallow, well-fed,
   welter, wizened