The Collaborative International Dictionary of English v.0.48:

Hanger \Hang"er\ (-[~e]r), n.
   1. One who hangs, or causes to be hanged; a hangman.
      [1913 Webster]

   2. That by which a thing is suspended. Especially:
      (a) A strap hung to the girdle, by which a dagger or sword
          is suspended.
      (b) (Mach.) A part that suspends a journal box in which
          shafting runs. See Illust. of Countershaft.
      (c) A bridle iron.
          [1913 Webster]

   3. That which hangs or is suspended, as a sword worn at the
      side; especially, in the 18th century, a short, curved
      sword.
      [1913 Webster]

   4. A steep, wooded declivity. [Eng.] --Gilbert White.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bridle iron \Bri"dle i`ron\ (Arch.)
   A strong flat bar of iron, so bent as to support, as in a
   stirrup, one end of a floor timber, etc., where no sufficient
   bearing can be had; -- called also stirrup and hanger.
   [1913 Webster]

WordNet (r) 3.0 (2006):

hanger
    n 1: a worker who hangs something
    2: anything from which something can be hung

Moby Thesaurus II by Grady Ward, 1.0:

109 Moby Thesaurus words for "hanger":
   afforestation, arboretum, banner, banner head, bar, belt, boom,
   boondocks, braces, bush, bushveld, button, caption, chase,
   climax forest, clotheshorse, clothespin, cloud forest, crane,
   dendrology, drape, drop head, dropline, ear lobe, epigraph, forest,
   forest land, forest preserve, forestry, fringing forest,
   gallery forest, gallows, galluses, garter, gibbet, greenwood, hake,
   hanging, head, heading, headline, hook, horse, index forest,
   jump head, jungle, jungles, knob, lappet, legend, lobation, lobe,
   lobule, motto, nail, national forest, overline, pair of suspenders,
   palmetto barrens, park, park forest, peg, pendant, pine barrens,
   pothook, primeval forest, protection forest, rain forest,
   reforestation, ring, rubric, running head, running title,
   scarehead, screamer, scrub, scrubland, selection forest, shrubland,
   silviculture, spar, spread, spreadhead, sprout forest,
   stand of timber, state forest, streamer, stud, subhead, subheading,
   subtitle, superscription, supporter, suspender, suspenders,
   suspensory, timber, timberland, title, title page, tree veld,
   uvula, virgin forest, wildwood, wood, woodland, woods, yard,
   yardarm