registered
a person officially qualified and licensed to work as a nurse
a person who has created an account to use a particular website, system, or service
an organization officially recognized by the government as charitable
a citizen who has officially signed up to be able to vote in elections
a postal service for sending items with proof of mailing and delivery
a postal service for sending items with proof of mailing and delivery
a letter sent by a postal service that provides proof of mailing and delivery
a person officially qualified and licensed to practice as a midwife
a person officially qualified and licensed to practice dentistry
a person officially qualified and licensed to work as an architect
a person who is officially on the list of people eligible to vote