The best replacement for qa is qc.

The best alternatives to qa are rated as following:
★★★★★  qc
★★★  qi
★★  testing
★★  uat
★★  developer
★★  ba
★  qe
★  tester
★  as
★  qc definition
★  quality assurance
★  qc difference
★  tqm
★  qm
  dev
  iv&v
  cqi
  test engineer
  staging

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

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



Google Trends

Scale is based on the average worldwide traffic of qa in all years. Click on graph for more.
qa
qc
qi