huge rock; crag
Refers to a very large rock or boulder, often in natural settings like mountains or coasts.
A huge rock towers over the coast.
There were many huge rocks along the mountain trail.
大岩 also means 'big rock' but is less formal and often used in everyday contexts; 巨岩 sounds more literary or dramatic.
Standard kanji spelling.
Rarely used kanji form; 巌 is a variant of 岩.
Compound of 巨 (きょ, 'huge') and 岩 (がん, 'rock'). The reading きょがん is the standard on'yomi combination.