justiciary vs Britain

justiciary and Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
justiciary	Yes	No	No	No
Britain	Yes	No	No	No

justiciary (noun)	Britain (noun)
the jurisdiction of a justiciar	a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom
formerly a high judicial officer