How to spell REGISTIRE correctly?

If you mean "register", then here are some possible suggestions: "register", "registry", "registration", "registered", "registering", "registers."

• register
• registered I have registered for the upcoming webinar on social media marketing.
• registers
• registry I need to add my new address to the registry at the post office.

Putrefication

• nitrification
• petrifaction
• purification
• putrefaction
• putrification
• vitrification