自動

• Reading: じどう
• Romaji: jidou
• Kanji breakdown: 自 (ji) — self; 動 (dou) — move, motion
• Pronunciation: /dʑi.doː/

Meaning

Automatic; self-operating. Describes something that moves or functions on its own.

A noun that also functions as a no-adjective (自動の). Frequently used as a prefix in compound words like 自動車 (automobile), 自動販売機 (vending machine), and 自動ドア (automatic door). Contrasts with 手動 (manual).

Examples

1. 駅の改札は自動になっている。 The ticket gates at the station are automated.
2. 自動で電気が消えるシステムを導入した。 We installed a system that automatically turns off the lights.
3. このカメラは自動でピントが合う。 This camera focuses automatically.

Usage Guide

Context: technology, daily life, transportation

Tone: neutral

Origin & History

Composed of 自 (self) and 動 (move, motion). The literal meaning is 'self-moving,' capturing the essence of automatic operation.

Cultural Context

Era: Modern

Generation: All ages

Social background: Universal