giant dragon
Refers to a dragon of enormous size, often in fantasy, mythology, or fiction.
In that story, a giant dragon as big as a mountain appears.
Standard kanji spelling using 竜 (dragon).
Variant using 龍, the traditional form of dragon. Less common but still seen.
Compound of 巨 (きょ, 'giant') and 竜 (りゅう, 'dragon').