The best replacement for activation is utilization.

The best alternatives to activation are rated as following:
★★★★★  utilization
★★★★  deactivate permanently
★  product key
★  registration
★  transactivation
★  arousal
★  actuation
★  push to talk

Your alternative for activation is not listed? Suggest!
Speaking about activation, one probably shouldn't forget about sim iphone.

Other search terms related to activation and their ratings are:

★★★★★ sim iphone
★★★★ itunes using iphone
★★★★ sim
★★★ sim iphone 4
★★ verizon wireless
★★ cingular
You have in mind a companion for activation and it is not yet here? Propose!

Google Trends

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