use; utility; benefit; effectiveness
Refers to the practical usefulness or beneficial effect of something, often in economic, practical, or abstract contexts. Similar to 有用性 but more focused on the resulting benefit.
この薬の効用は科学的に証明されている。
The effectiveness of this medicine has been scientifically proven.
He gave a lecture on the utility of money.
This tea has beneficial health effects.
This tool proves its usefulness in times of disaster.
This vitamin supplement is said to have high effectiveness.