Translation guide
The English word 'regeneration' covers several distinct concepts: biological regrowth, spiritual rebirth, urban renewal, and technical signal restoration. This guide helps learners choose the right Japanese expression for each meaning.
Expressing the regrowth of lost or damaged body parts, organs, or tissue in living organisms.
The most common and general term for biological regeneration, covering tissue repair, organ regrowth, and even limb regeneration in animals. Used in medical, biological, and everyday contexts.
肝臓は再生能力が高い臓器です。
The liver is an organ with high regenerative capacity.
イモリは失った手足を再生できる。
Newts can regenerate lost limbs.
Specifically refers to regenerative medicine, a field that uses stem cells and tissue engineering to repair or replace damaged tissues and organs.
再生医療は難病治療の希望とされています。
Regenerative medicine is seen as a hope for treating intractable diseases.
Technical term for tissue regeneration, often used in scientific or medical contexts.
この研究は組織再生のメカニズムを解明するものです。
This research aims to elucidate the mechanism of tissue regeneration.
Referring to a personal transformation, revival, or being born again in a religious or metaphorical sense.
Also used metaphorically for spiritual rebirth or personal renewal, similar to 'born again'. Can be used in religious contexts or self-help.
彼は挫折を乗り越え、精神的に再生した。
He overcame his setbacks and was spiritually reborn.
Literally 'new birth', often used for a fresh start or rebirth of a person, organization, or era. Carries a nuance of a completely new beginning.
Means revival or resurrection. Often used for comebacks, reviving old traditions, or religious resurrection. Less about internal transformation, more about returning to a former state.
Describing the process of improving and renewing urban areas, often involving construction and infrastructure.
The standard term for urban redevelopment, referring to large-scale projects that replace old buildings and infrastructure with new ones.
この地域は大規模な再開発が行われている。
Large-scale redevelopment is taking place in this area.
Used in phrases like 都市再生 (urban regeneration) to imply revitalization, not just physical rebuilding but also economic and social renewal.
Means revitalization or activation, often used for economic or community regeneration rather than physical construction.
In electronics or computing, restoring a degraded signal to its original form.
Used in technical contexts for signal regeneration, data recovery, or playback (e.g., audio/video). The same word covers many 're-' concepts.
この装置は信号を再生する。
This device regenerates the signal.
Means restoration or reconstruction, often used for data recovery or restoring something to its original state.
再生 (さいせい) is the most versatile, covering biological regrowth, spiritual rebirth, and technical regeneration. 復活 (ふっかつ) implies revival or comeback, often after a period of inactivity or death. 新生 (しんせい) emphasizes a completely new start or rebirth. For urban contexts, 再開発 (さいかいはつ) is the standard for physical redevelopment, while 再生 can imply broader revitalization.
If you mean fixing a broken object (like a car or watch), use 修理 (しゅうり) or 修復 (しゅうふく). 再生 implies a more fundamental renewal or regrowth, not just mending.
会社は新生して、新たな事業を始めた。
The company was reborn and started a new business.
そのバンドは10年ぶりに復活した。
The band made a comeback after 10 years.
都市再生プロジェクトが始まった。
The urban regeneration project has started.
商店街の活性化が課題だ。
Revitalizing the shopping district is a challenge.
破損したデータを復元する。
Restore corrupted data.