The Collaborative International Dictionary of English v.0.48:

Swallow \Swal"low\, n. [OE. swalowe, AS. swalewe, swealwe; akin
   to D. zwaluw, OHG. swalawa, G. schwalbe, Icel. & Sw. svala,
   Dan. svale.]
   1. (Zool.) Any one of numerous species of passerine birds of
      the family Hirundinidae, especially one of those species
      in which the tail is deeply forked. They have long,
      pointed wings, and are noted for the swiftness and
      gracefulness of their flight.
      [1913 Webster]

   Note: The most common North American species are the barn
         swallow (see under Barn), the cliff, or eaves,
         swallow (see under Cliff), the white-bellied, or
         tree, swallow (Tachycineta bicolor), and the bank
         swallow (see under Bank). The common European swallow
         (Chelidon rustica), and the window swallow, or martin
         (Chelidon urbica), are familiar species.
         [1913 Webster]

   2. (Zool.) Any one of numerous species of swifts which
      resemble the true swallows in form and habits, as the
      common American chimney swallow, or swift.
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   3. (Naut.) The aperture in a block through which the rope
      reeves. --Ham. Nav. Encyc.
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   Swallow plover (Zool.), any one of several species of
      fork-tailed ploverlike birds of the genus Glareola, as
      Glareola orientalis of India; a pratincole.

   Swallow shrike (Zool.), any one of several species of East
      Indian and Asiatic birds of the family Artamiidae,
      allied to the shrikes but similar to swallows in
      appearance and habits. The ashy swallow shrike (Artamus
      fuscus) is common in India.

   Swallow warbler (Zool.), any one of numerous species of
      East Indian and Australian singing birds of the genus
      Dicaeum. They are allied to the honeysuckers.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Swallow \Swal"low\, v. t. [imp. & p. p. Swallowed; p. pr. &
   vb. n. Swallowing.] [OE. swolewen, swolwen, swolhen, AS.
   swelgan; akin to D. zwelgen, OHG. swelahan, swelgan, G.
   schwelgen to feast, to revel, Icel. svelgia to swallow, SW.
   sv[aum]lja, Dan. svaelge. Cf. Groundsel a plant.]
   1. To take into the stomach; to receive through the gullet,
      or esophagus, into the stomach; as, to swallow food or
      drink.
      [1913 Webster]

            As if I had swallowed snowballs for pills. --Shak.
      [1913 Webster]

   2. To draw into an abyss or gulf; to ingulf; to absorb --
      usually followed by up. --Milton.
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            The earth opened her mouth, and swallowed them up,
            and their houses.                     --Num. xvi.
                                                  32.
      [1913 Webster]

   3. To receive or embrace, as opinions or belief, without
      examination or scruple; to receive implicitly.
      [1913 Webster]

            Though that story . . . be not so readily swallowed.
                                                  --Sir T.
                                                  Browne.
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   4. To engross; to appropriate; -- usually with up.
      [1913 Webster]

            Homer excels . . . in this, that he swallowed up the
            honor of those who succeeded him.     --Pope.
      [1913 Webster]

   5. To occupy; to take up; to employ.
      [1913 Webster]

            The necessary provision of the life swallows the
            greatest part of their time.          --Locke.
      [1913 Webster]

   6. To seize and waste; to exhaust; to consume.
      [1913 Webster]

            Corruption swallowed what the liberal hand
            Of bounty scattered.                  --Thomson.
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   7. To retract; to recant; as, to swallow one's opinions.
      "Swallowed his vows whole." --Shak.
      [1913 Webster]

   8. To put up with; to bear patiently or without retaliation;
      as, to swallow an affront or insult.
      [1913 Webster]

   Syn: To absorb; imbibe; ingulf; engross; consume. See
        Absorb.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Swallow \Swal"low\, v. i.
   To perform the act of swallowing; as, his cold is so severe
   he is unable to swallow.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Swallow \Swal"low\, n.
   1. The act of swallowing.
      [1913 Webster]

   2. The gullet, or esophagus; the throat.
      [1913 Webster]

   3. Taste; relish; inclination; liking. [Colloq.]
      [1913 Webster]

            I have no swallow for it.             --Massinger.
      [1913 Webster]

   4. Capacity for swallowing; voracity.
      [1913 Webster]

            There being nothing too gross for the swallow of
            political rancor.                     --Prof.
                                                  Wilson.
      [1913 Webster]

   5. As much as is, or can be, swallowed at once; as, a swallow
      of water.
      [1913 Webster]

   6. That which ingulfs; a whirlpool. [Obs.] --Fabyan.
      [1913 Webster]

WordNet (r) 3.0 (2006):

swallow
    n 1: a small amount of liquid food; "a sup of ale" [syn:
         swallow, sup]
    2: the act of swallowing; "one swallow of the liquid was
       enough"; "he took a drink of his beer and smacked his lips"
       [syn: swallow, drink, deglutition]
    3: small long-winged songbird noted for swift graceful flight
       and the regularity of its migrations
    v 1: pass through the esophagus as part of eating or drinking;
         "Swallow the raw fish--it won't kill you!" [syn: swallow,
         get down]
    2: engulf and destroy; "The Nazis swallowed the Baltic
       countries"
    3: enclose or envelop completely, as if by swallowing; "The huge
       waves swallowed the small boat and it sank shortly
       thereafter" [syn: immerse, swallow, swallow up, bury,
       eat up]
    4: utter indistinctly; "She swallowed the last words of her
       speech"
    5: take back what one has said; "He swallowed his words" [syn:
       swallow, take back, unsay, withdraw]
    6: keep from expressing; "I swallowed my anger and kept quiet"
    7: tolerate or accommodate oneself to; "I shall have to accept
       these unpleasant working conditions"; "I swallowed the
       insult"; "She has learned to live with her husband's little
       idiosyncrasies" [syn: accept, live with, swallow]
    8: believe or accept without questioning or challenge; "Am I
       supposed to swallow that story?"

Moby Thesaurus II by Grady Ward, 1.0:

215 Moby Thesaurus words for "swallow":
   abide, abjure, ablate, absorb, accede, accept, accept for gospel,
   accept implicitly, acquiesce, allow, and sinker, antelope, arrow,
   assent, assimilate, back down, back out, backwater, be a sucker,
   be agreeable, be certain, be taken in, bear with, beard, believe,
   believe without reservation, bite, bleed white, blue darter,
   blue streak, bolus, brook, burn up, buy, cannonball, champ, chaw,
   chew, chomp, climb down, comply, conquer, consent, consume,
   control, courser, crawfish out, credit, cud, dart, deny, deplete,
   devour, digest, disavow, disclaim, disown, dispatch, dispose of,
   disregard, down, drain, drain of resources, drink, drinking, drop,
   eagle, eat, eat crow, eat humble pie, eat up, eating, electricity,
   endure, engorge, engorgement, engulf, engulfment, erode, exhaust,
   expend, express train, face the music, fall for, finish,
   finish off, flash, forswear, fumble, gazelle, get away with,
   get down, give faith to, gnash, go, go along with, go for, gob,
   gobble, gobble up, greased lightning, greyhound, gulp, gulp down,
   gulping, guzzle, hare, ignore, imbibe, imbibition, impoverish,
   ingest, ingestion, ingurgitate, ingurgitation, jet plane,
   knock under, knuckle down, knuckle under, lap up, light, lightning,
   line, live with it, mercury, morsel, mouthful, muddle, munch,
   murmur, mutter, nibble, nip, not resist, obey, overcome, pack away,
   pocket, pocket the affront, put away, put faith in, quaff,
   quicksilver, quid, quilt, recant, receive, relent, renege,
   renounce, repress, repudiate, resign, retract, revoke, rocket,
   scared rabbit, set store by, shot, sip, slurp, smother, snap,
   spend, squander, stand, stifle, stomach, streak,
   streak of lightning, striped snake, submit, succumb, suck dry, sup,
   suppress, surround, swallow an insult, swallow anything,
   swallow hook, swallow it, swallow the pill, swallow up,
   swallow whole, swallowing, swig, swill, swill down, swing at, take,
   take back, take down, take for granted, take in, take it,
   take on faith, take on trust, take stock in, take the bait,
   thought, thunderbolt, tolerate, torrent, toss, trust, tuck in,
   tumble for, turn aside provocation, unsay, use up, waste away,
   wear away, wind, withdraw, wolf down



Easton's 1897 Bible Dictionary:

Swallow
   (1.) Heb. sis (Isa. 38:14; Jer. 8:7), the Arabic for the swift,
   which "is a regular migrant, returning in myriads every spring,
   and so suddenly that while one day not a swift can be seen in
   the country, on the next they have overspread the whole land,
   and fill the air with their shrill cry." The swift (cypselus) is
   ordinarily classed with the swallow, which it resembles in its
   flight, habits, and migration.

     (2.) Heb. deror, i.e., "the bird of freedom" (Ps. 84:3; Prov.
   26:2), properly rendered swallow, distinguished for its
   swiftness of flight, its love of freedom, and the impossibility
   of retaining it in captivity. In Isa. 38:14 and Jer. 8:7 the
   word thus rendered ('augr) properly means "crane" (as in the
   R.V.).