registered (Adjective) — Listed or recorded officially. ex. "record is made of 'registered mail' at each point on its route to assure safe delivery" ex. "registered bonds"
registered (Adjective) — (of animals) officially recorded with or certified by a recognized breed association; especially in a stud book. ex. "a registered Percheron"
registered (Adjective) — (of a boat or vessel) furnished with necessary official documents specifying ownership etc.
registered (Verb) — Record in writing; enter into a book of names, events or transactions.
registered (Verb) — (law) record in a public office or in a court of law. ex. "register for divorce"
registered (Verb) — Enrol to vote. ex. "register for an election"
registered (Verb) — Be aware of. ex. "Did you register any change when I pressed the button?"
registered (Verb) — Indicate a certain reading; of gauges and instruments.
registered (Verb) — Have one's name listed as a candidate for several parties.
registered (Verb) — Show in one's face. ex. "Her surprise did not register"
registered (Verb) — (music) manipulate the registers of an organ.
registered (Verb) — Send by registered mail. ex. "I'd like to register this letter"
registered (Verb) — Enter into someone's consciousness. ex. "Did this event register in your parents' minds?"