1) magnificent, excellent, splendid, wonderful
Part of Speech: adjective
Citing in TDNT: 4:541, 573
From G3173; magnificent, that is, (neuter plural as noun) a conspicuous favor, or (subjectively) perfection: - great things, wonderful works.
These two sites give similar information, with the definition from several dictionaries and statistics on the use of the word.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root μεγαλεῖος; click on the second column to search for that grammatical form of the root μεγαλεῖος; click on the third column to search for that word and grammatical form; click on the total to search for the root μεγαλεῖος.