定着

• Reading: ていちゃく
• Romaji: teichaku
• Kanji breakdown: 定 (tei/sada) — fixed, settled; 着 (chaku/ki) — arrive, attach
• Pronunciation: /teː.tɕa.kɯ/

Meaning

Establishing; taking root; settling; becoming fixed. The process by which something new becomes permanent, habitual, or accepted.

A suru-verb noun (定着する) describing the transition from something novel or temporary to something rooted and stable. Used for habits, customs, technologies, loanwords, and personnel. Distinct from 定住 (settling in a place physically) in that 定着 applies broadly to intangible things becoming entrenched.

Examples

1. 新しい習慣が生活に定着するまで三か月かかった。 It took three months for the new habit to take root in daily life.
2. その制度は社会に定着した慣行となっている。 The system has become an established practice in society.
3. 外来語が日本語として定着するプロセスは興味深い。 The process by which loanwords become entrenched in Japanese is fascinating.

Usage Guide

Context: sociology, business, linguistics

Tone: neutral

Origin & History

Sino-Japanese compound of 定 (fixed, settled) and 着 (arrive, attach). The combination suggests something arriving and then becoming fixed in place.

Cultural Context

Era: Modern

Generation: All ages

Social background: Universal