1.
fulfillment, enrichment, substance
Being full, complete, or satisfying; having substance and meaning.
充実した生活を送りたい。
I want to live a fulfilling life.
サービスの充実を図る。
To work on improving services.
内容が充実している。
The content is substantial/rich.
充実 means fulfillment, enrichment, or substance—being full and satisfying.
ETYMOLOGY:
充 (fill) + 実 (fruit/substance).
TWO MAIN USES:
1. Personal fulfillment:
- 充実した生活: fulfilling life
- 充実感: sense of fulfillment
2. Enhancement/enrichment (business):
- サービスの充実: enhancement of services
- 内容の充実: enrichment of content
COMMON EXPRESSIONS:
- 充実している: to be fulfilling/substantial
- 充実を図る: to work on improvement
- 充実した時間: fulfilling time
- 設備の充実: improvement of facilities
PART OF SPEECH:
Functions as both noun and suru-verb.