How to say "high-tech" in Japanese

• ハイテクCommon
  na-adjective, no-adjectiveThe common, everyday word for 'high-tech'; when you need to refer to highly advanced technology in speech or writing, this is normally the choice.
  日本にっぽんは世界せかいのハイテク産業さんぎょうのリーダーだ。↗

  Japan is a leader in the world's high-tech industry.
• 高度技術こうどぎじゅつ
  no-adjectiveA less common term that literally means 'advanced technology'; it denotes the technology itself rather than serving as the everyday equivalent of 'high-tech', so it is seldom the word you want in ordinary conversation.
• ハイテクノロジー
  na-adjective, nounThe full form of the loanword, meaning 'high technology'; it refers to the same thing as ハイテク but is less common, so ハイテク is usually the form you will encounter.

For the everyday sense of 'high-tech' use 「ハイテク」; 高度技術 is a less common term for advanced technology itself, and 「ハイテクノロジー」 is a longer, less common way of saying the same thing.

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

• ハイテクhigh-tech
• 高度技術こうどぎじゅつhigh-tech
• ハイテクノロジーhigh-technology