The Collaborative International Dictionary of English v.0.48:

Dive \Dive\, v. i. [imp. & p. p. Dived, colloq. Dove, a
   relic of the AS. strong forms de['a]f, dofen; p. pr. & vb. n.
   Diving.] [OE. diven, duven, AS. d?fan to sink, v. t., fr.
   d?fan, v. i.; akin to Icel. d?fa, G. taufen, E. dip, deep,
   and perh. to dove, n. Cf. Dip.]
   1. To plunge into water head foremost; to thrust the body
      under, or deeply into, water or other fluid.
      [1913 Webster]

            It is not that pearls fetch a high price because men
            have dived for them.                  --Whately.
      [1913 Webster]

   Note: The colloquial form dove is common in the United States
         as an imperfect tense form.
         [1913 Webster]

               All [the walruses] dove down with a tremendous
               splash.                            --Dr. Hayes.
         [1913 Webster]

               When closely pressed it [the loon] dove . . . and
               left the young bird sitting in the water. --J.
                                                  Burroughs.
         [1913 Webster]

   2. Fig.: To plunge or to go deeply into any subject,
      question, business, etc.; to penetrate; to explore.
      --South.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Diva \Di"va\ (d[=e]"v[.a]), n.; It. pl. Dive (d[=e]"v[=a]).
   [It., prop. fem. of divo divine, L. divus.]
   A prima donna.
   [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Dive \Dive\, v. t.
   1. To plunge (a person or thing) into water; to dip; to duck.
      [Obs.] --Hooker.
      [1913 Webster]

   2. To explore by diving; to plunge into. [R.]
      [1913 Webster]

            The Curtii bravely dived the gulf of fame. --Denham.
      [1913 Webster]

            He dives the hollow, climbs the steeps. --Emerson.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Dive \Dive\, n.
   1. A plunge headforemost into water, the act of one who
      dives, literally or figuratively.
      [1913 Webster]

   2. A place of low resort. [Slang]
      [1913 Webster]

            The music halls and dives in the lower part of the
            city.                                 --J.
                                                  Hawthorne.
      [1913 Webster]

WordNet (r) 3.0 (2006):

dive
    n 1: a cheap disreputable nightclub or dance hall [syn:
         honkytonk, dive]
    2: a headlong plunge into water [syn: dive, diving]
    3: a steep nose-down descent by an aircraft [syn: dive, nose
       dive, nosedive]
    v 1: drop steeply; "the stock market plunged" [syn: dive,
         plunge, plunk]
    2: plunge into water; "I was afraid to dive from the board into
       the pool"
    3: swim under water; "the children enjoyed diving and looking
       for shells"

Moby Thesaurus II by Grady Ward, 1.0:

249 Moby Thesaurus words for "dive":
   abate, ablate, acrobatics, aerobatics, alehouse, bagnio, banking,
   bar, barrel house, barroom, bate, bathe, bawdyhouse, be eaten away,
   beat down, beer garden, beer parlor, belly buster, belly flop,
   belly whopper, bistro, blind tiger, bordello, bound, break,
   break water, breaking water, brothel, burst, cabaret, cafe,
   cannonball, catabasis, cathouse, chandelle, cheapen, cheapening,
   clip joint, club, cocktail lounge, collapse, consume, consume away,
   corrode, countersink, crabbing, crash, crash dive, crib, cropper,
   crumble, culbute, cut, cut prices, deceleration, declension,
   decline, decline and fall, decrease, decrescendo, deepen, deflate,
   deflation, deliquesce, den, den of thieves, den of vice,
   depreciate, depreciation, depress, descend, devaluate, devaluation,
   die away, dig, diminish, diminuendo, dip, disorderly house, diving,
   downtrend, downturn, dramshop, drill, drinking saloon, drive, drop,
   drop off, duck, dump, dwindle, dwindling, ebb, erode, excavate,
   fall, fall away, fall in price, fall off, fishtailing, fleshpots,
   float, flood negative, flood the tanks, flop, forced landing,
   gainer, gin mill, give way, glide, go below, go in swimming,
   go in wading, go under, groggery, grogshop, gyp joint, hangout,
   header, hole, honky-tonk, house of assignation, house of joy,
   house of prostitution, impel, jackknife, jew down, joint, jump,
   lair, languish, lapse, leap, lessen, let up, local, lose altitude,
   lounge, lower, lowering, lunge, mark down, markdown, melt away,
   mine, move, nightclub, nose dive, nose-dive, nosedive, panel den,
   panel house, parachute, parachute jump, pare, pitch, plop, plummet,
   plummeting, plump, plunge, plunk, pothouse, pounce, pounce on,
   pounce upon, power dive, pratfall, price cut, price fall,
   price reduction, pub, public, public house, pull-up, pullout,
   pushdown, rathskeller, red-light district, reduce, reduction,
   remission, retreat, rig for diving, rolling, rumshop, run low,
   running dive, sag, saloon, saloon bar, settle, shave, shrink,
   sideslip, sink, sink of iniquity, skin-dive, skinny-dip, sky dive,
   sky-dive, slash, slowdown, slump, sound, speakeasy, spill, spiral,
   sporting house, sprawl, spring, stall, stationary dive, stew,
   stews, stoop, stumble, stunting, submerge, submergence, subside,
   subsidence, surface, surfacing, swan dive, swim, swoop, swoop down,
   tactical maneuvers, tail off, take a header, taproom, tavern,
   tenderloin, tread water, trim, trip, tumble, tunnel, volplane,
   wade, wane, waste, waste away, wear, wear away, whorehouse,
   wine shop, zoom



V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

DIVE
       Direct Interface Video Extensions (IBM, MMPM/2)