The best replacement for walk is run.

The best alternatives to walk are rated as following:
★★★★★  run
★★★  jog
★★  run in the rain
★★  run to lose weight
★  run burn more calories
★  run calories
★  blood walk
★  crip walk
  run in rain
  harlem shake
  hike
  floor muffler
  goskywatch
  go walk 2
  not to walk
  walks
  starmap
  1 mile run
  hop
  pocket universe
  run through rain

Your alternative for walk is not listed? Suggest!
Speaking about walk, one probably shouldn't forget about toes.

Other search terms related to walk and their ratings are:
★★★★★ toes
You have in mind a companion for walk and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of walk in all years. Click on graph for more.
walk
run
jog