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.
regeneration (biology)
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.
The liver is an organ with high regenerative capacity.
Technical term for tissue regeneration, often used in scientific or medical contexts.
Referring to a personal transformation, revival, or being born again in a religious or metaphorical sense.
Describing the process of improving and renewing urban areas, often involving construction and infrastructure.
In electronics or computing, restoring a degraded signal to its original form.
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.
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.
Regenerative medicine is seen as a hope for treating intractable diseases.
This research aims to elucidate the mechanism of tissue regeneration.
Also used metaphorically for spiritual rebirth or personal renewal, similar to 'born again'. Can be used in religious contexts or self-help.
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.
The company was reborn and started a new business.
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.
The band made a comeback after 10 years.
The standard term for urban redevelopment, referring to large-scale projects that replace old buildings and infrastructure with new ones.
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.
The urban regeneration project has started.
Means revitalization or activation, often used for economic or community regeneration rather than physical construction.
Revitalizing the shopping district is a challenge.
Used in technical contexts for signal regeneration, data recovery, or playback (e.g., audio/video). The same word covers many 're-' concepts.
This device regenerates the signal.
Means restoration or reconstruction, often used for data recovery or restoring something to its original state.
Restore corrupted data.