#strengthener__reinforcement  a device designed to provide additional strength; "the cardboard backing was just a strengthener,"; "he used gummed reinforcements to hold the page in his notebook"
  supertype:  device  an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water"
  subtype:  backing.layer__mount  something forming a back that is added for strengthening
  subtype:  bracing__brace  a structural member used to stiffen a framework
     subtype:  crosspiece  a transverse brace
        subtype:  crossbar  long thin horizontal crosspiece between two vertical posts
        subtype:  rundle__spoke  one of the crosspieces that form the steps of a ladder
        subtype:  rung__round__stave  a crosspiece between the legs of a chair
        subtype:  cross_thwart__crossthwart__thwart  a crosspiece spreading the gunnels of a boat; used as a seat in a rowboat
        subtype:  transom__traverse  a horizontal crosspiece across a window or separating a door from a window over it
     subtype:  gusset_plate__gusset  a metal plate used to strengthen a joist
     subtype:  guy_cable__guycable__guy__guyrope  a rope or cable that is used to brace something (especially a tent)
     subtype:  stay.bracing  (nautical) brace consisting of a heavy rope or wire cable used as a support for a mast or spar
        subtype:  backstay  a stay that supports the back of something
        subtype:  forestay  a adjustable stay from the foremast to the deck or bowsprit; controls the bending of the mast
           subtype:  mainstay  the forestay that braces the mainmast
     subtype:  stringer.bracing  brace consisting of a longitudinal member to strengthen a fuselage or hull
     subtype:  strut  brace consisting of a bar or rod used to resist longitudinal compression
     subtype:  railroad_tie__tie__crosstie__sleeper  one of the cross braces that support the rails on a railway track; "the British call a railroad tie a sleeper"
  subtype:  brace  a support that steadies or strengthens something else; "he wore a brace on his knee"
     subtype:  ankle_brace  a brace worn to strengthen the ankle
     subtype:  back_brace  a brace worn to support the back
     subtype:  knee_brace  a brace worn to strengthen the knee
     subtype:  neck_brace  a brace worn to steady the neck
     subtype:  skeg  a brace that extends from the rear of the keel to support the rudderpost
  subtype:  safety_arch  an undecorated arch that is included in order to strengthen or support a construction

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