registered

To enter in a register.

To enroll, especially to vote.

To record, especially in writing.

To buy the full version of trial software by providing one's details and payment.

“This is a trial version, and will expire in 30 days. Please register!”

To express outward signs.

(mail) To record officially and handle specially.

To make or adjust so as to be properly or precisely aligned.

To place one's name, or have one's name placed in a register.

“They registered for school.”

To make an impression.

To be in proper alignment; to align or correspond exactly.

To voluntarily sign over for safe keeping, abandoning complete ownership for partial.

Having had one's name added to an official list or entered into a register

“a registered nurse”

(mail service) Having a mailed item recorded in a register to enable its location to be tracked, sometimes with added insurance to cover loss.