The Collaborative International Dictionary of English v.0.48:

flashlight \flash"light`\ n.
   a portable battery-powered electric lamp, small enough to be
   held in one hand; -- it is most commonly cylindrical, but
   other forms are also made. It is called in Britain a torch

   Syn: torch.
        [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

Torch \Torch\ (t[^o]rch), n. [OE. torche, F. torche a torch,
   rag, wisp, pad; probably from a derivative of L. torquere,
   tortum, to twist, because twisted like a rope; cf. F. torcher
   to rub, wipe, It. topcia a torch, torciare to wrap, twist,
   OF. torse a torse. Cf. Torture.]
   A light or luminary formed of some combustible substance, as
   of resinous wood; a large candle or flambeau, or a lamp
   giving a large, flaring flame.
   [1913 Webster]

         They light the nuptial torch.            --Milton.
   [1913 Webster]
   [1913 Webster]

   Torch thistle. (Bot.) See under Thistle.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Torchwort \Torch"wort`\, n. (Bot.)
   The common mullein, the stalks of which, dipped in suet,
   anciently served for torches. Called also torch, and
   hig-taper.
   [1913 Webster]

WordNet (r) 3.0 (2006):

torch
    n 1: a light usually carried in the hand; consists of some
         flammable substance
    2: tall-stalked very woolly mullein with densely packed yellow
       flowers; ancient Greeks and Romans dipped the stalks in
       tallow for funeral torches [syn: common mullein, great
       mullein, Aaron's rod, flannel mullein, woolly mullein,
       torch, Verbascum thapsus]
    3: a small portable battery-powered electric lamp [syn:
       flashlight, torch]
    4: a burner that mixes air and gas to produce a very hot flame
       [syn: blowtorch, torch, blowlamp]
    v 1: burn maliciously, as by arson; "The madman torched the
         barns"

Moby Thesaurus II by Grady Ward, 1.0:

94 Moby Thesaurus words for "torch":
   acetylene welder, angle, arsonist, bait the hook, bank, blast lamp,
   blowpipe, blowtorch, bob, brand, burn, burner, butane lighter,
   candle, cigarette lighter, clam, conflagrate, cresset, dap, dib,
   dibble, drive, electric light bulb, enkindle, fan the flame, feed,
   feed the fire, fire, firebrand, firebug, fish, flambeau, flame,
   flaming torch, flare, flint, flint and steel, fly-fish, fusee, gig,
   glim, go fishing, grig, guddle, ignite, igniter, illuminant,
   illuminator, incandescent body, inflame, jack, jacklight, jig,
   kindle, lamp, lantern, light, light bulb, light source, light up,
   lighter, link, luminant, luminary, match, moon, net, portfire,
   rekindle, relight, relume, seine, set fire to, set on fire, shrimp,
   signal flare, source of light, sparker, spill, spin, stars,
   still-fish, stir the fire, stoke, stoke the fire, strike a light,
   sun, taper, touch off, trawl, troll, welder, welding blowpipe,
   whale