The best replacement for tdy is pcs.

The best alternatives to tdy are rated as following:
★★★★★  pcs
★★★  tcs
★★★  deployment
★★  tad
★  local travel
  tdj

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

Other search terms related to tdy and their ratings are:
★★★★★ leave
★★★★ terminal leave
★★★ leave enroute
★ ets
★ pcs leave
You have in mind a companion for tdy and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of tdy in all years. Click on graph for more.
tdy
pcs
tcs