計器

• Reading: けいき
• Romaji: keiki
• Kanji breakdown: 計 (kei) — measure, plan; 器 (ki) — instrument, vessel
• Pronunciation: /ke.i.ki/

Meaning

Meter; gauge; measuring instrument. A device used to measure and display physical quantities.

A noun referring to instruments that measure physical quantities like temperature, pressure, speed, or altitude. Common in aviation (計器飛行, keikihikou, instrument flight), automotive (計器盤, keikiban, instrument panel), and scientific contexts. A more technical term than メーター (meter).

Examples

1. 飛行機の計器を一つ一つ確認した。 I checked each of the airplane's instruments one by one.
2. 計器が異常な数値を示している。 The gauge is showing abnormal readings.
3. この計器で温度と湿度を測れる。 You can measure temperature and humidity with this instrument.

Usage Guide

Context: aviation, science, engineering

Tone: technical

Origin & History

Composed of 計 (measure, plan) and 器 (vessel, instrument). The combination literally means a measuring instrument or tool.

Cultural Context

Era: Modern

Generation: Adults

Social background: Universal