高圧

1. Origins, structure, and basic meaning

• Structure: 高圧(こうあつ) means high pressure or high voltage.
• Basic usage: It is used for equipment that applies pressure and for electrical installations. Typical patterns are 高圧をかける and 高圧の電気設備.

2. Common pitfalls and similar expressions

• Choose the sense by field
  • In fluid or vessel contexts it means high pressure; in electrical contexts it means high voltage.
• Difference from 圧力
  • 圧力(あつりょく) broadly denotes pressure itself, while 高圧 specifies that the pressure or voltage is high.