noun
Physical vertical distance above a reference point, often sea level. Used in geography, aviation, and everyday descriptions of high places.
飛行機は高度一万メートルを飛んでいる。
The airplane is flying at an altitude of 10,000 meters.
この山の高度は三千メートル以上ある。
The altitude of this mountain is over 3,000 meters.
na-adjective, noun which may take the genitive case particle 'no'
advanced; high-level; sophisticated
Describes a high degree of complexity, development, or quality. Common with nouns like 技術, 文明, 情報処理, and な-adjective use.
日本は高度な技術を持っている。
Japan has advanced technology.
高度情報化社会では、データの扱いが重要だ。
In a highly information-oriented society, handling data is important.