高度|こうどkoudo[1]atamadaka (head-high)

1. nounaltitude; height; elevation
   これより次第しだいに高度こうどを下さげてまいります。↗

   We are beginning our descent.
2. na-adjective, no-adjectivehigh-degree; high-grade; advanced; sophisticated; strong
   この仕事しごとは高度こうどの熟練じゅくれんを必要ひつようとする。↗

   This work calls for a high degree of skill.

• Synonym高いたかいNeutralEveryday adjective covering high, tall, expensive, or a high level; 「高度」 leans written and mostly describes an advanced technical level.
• Synonym高さたかさNeutralThe height or elevation of an object, focused on a concrete figure; 「高度」 also covers the altitude of aircraft.
• Related高級こうきゅうNeutralHigh-class or high-grade, mostly for products; 「高度」 is about technology or degree, not product grade.
• Related極度きょくどWrittenA written word for an extreme degree, pushed to the very limit and often negative, as in 「極度の疲労」.
• Related高尚こうしょうWrittenWritten word for refined, elevated taste, as in 「高尚な趣味」; 「高度」 stresses technical sophistication instead.
• Antonym低度ていどWrittenWritten word meaning a low degree; the direct opposite of 「高度」.

Use 「高度」 for flight altitude or an advanced technical level, as in 「高度な技術」. Daily speech uses 「高い」; concrete height is 「高さ」; high-class goods 「高級」; refined taste 「高尚」. 「極度」 means extreme, often negative, while 「低度」 is the direct opposite of 「高度」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 平均へいきん海かい水面すいめんからの高たかさ。
2. 地平線ちへいせんからみた天体てんたいの見みかけ上じょうの高たかさ。
3. （技術ぎじゅつなどの）程度ていどが高たかいこと。
4. （技術ぎじゅつなどの）程度ていどが高たかいさま。