Wordnet 3.0
ADJECTIVE (3)
1.
(of animals) officially recorded with or certified by a recognized breed association;
especially in a stud book;
- Example: "a registered Percheron"2.
listed or recorded officially;
- Example: "record is made of `registered mail' at each point on its route to assure safe delivery"- Example: "registered bonds"3.
(of a boat or vessel) furnished with necessary official documents specifying ownership etc;
WordNet (r) 3.0 (2006):
registered
adj 1: (of animals) officially recorded with or certified by a
recognized breed association; especially in a stud book;
"a registered Percheron" [ant: unregistered]
2: listed or recorded officially; "record is made of `registered
mail' at each point on its route to assure safe delivery";
"registered bonds" [ant: unregistered]
3: (of a boat or vessel) furnished with necessary official
documents specifying ownership etc
Moby Thesaurus II by Grady Ward, 1.0:
19 Moby Thesaurus words for "registered":
booked, documented, down, enrolled, entered, filed, indexed,
inscribed, legal, logged, minuted, of record, official, on file,
on record, on the books, posted, recorded, written down