How to say "machinery" in Japanese

• 機器ききCommon
  nounMachinery as tangible equipment: devices and apparatus taken as physical items. When you mean actual machines rather than an abstract system or mechanism, this is the natural choice.
  ディスプレイはモニタともいい、コンピュータなどの機器ききから出力しゅつりょくされる静止画せいしがまたは動画どうがの映像えいぞう信号しんごうを表示ひょうじする機器ききである。↗

  A display, aka monitor, is an appliance that displays video signal of still images and moving pictures produced by a computer or similar device.
• 機構きこうJLPT N1approx.Common
  nounReally 'mechanism': machinery understood as a system of interworking parts rather than tangible machines. For actual devices and equipment it is seldom the word you want; 機器 covers that side.
  どこか機構きこうが悪わるいに違ちがいない。↗

  Something must be wrong with the machinery.

Choose 機器 for machinery meaning physical equipment — actual devices and apparatus — and 機構 for machinery as a mechanism, a system of working parts rather than tangible machines.

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

• 機器ききdevice
• 機構きこうmechanism
• からくりmechanism
• 機械類きかいるいmachinery
• マシーナリーmachinery