handhold: what two climbers do during long bivouacs on narrow ledges.

Related:

• water knot: rope configuration used by sea cliff climbers who tend to fall a lot.
  "An Alphabet for Mountaineers", Climbing...
• shock: large fish that can bite your leg off. chiefly of concern to sea cliff climbers.
  "An Alphabet for Mountaineers", Climbing...
• heading: going to the latrine. -- "An Alphabet for Mountaineers",
  Climbing...
• exposure: result of answering the call of nature during a climb.
  "An Alphabet for Mountaineers", Climbing...
• knot: configuration often discovered in the middle of a rappel rope during a rappel.
  "An Alphabet for Mountaineers", Climbing...
• rainfly: pesky insect that only appears during wet weather.
  "An Alphabet for Mountaineers", Climbing...
• hold: what you try to do when you wake at 4am after having overrehydrated yourself.
  "An Alphabet for Mountaineers", Climbing...
• fall: good time of year for climbing. -- "An Alphabet for Mountaineers",
  Climbing...
• horn: malady brought on by being too long alone in the mountains.
  "An Alphabet for Mountaineers", Climbing...