The promotion or enhancement of something (improving or advancing a condition, ability, relationship, etc.).
定期的な運動は健康増進に非常に重要だ。
Regular exercise is very important for promoting health.
両国の友好関係の増進を目的に首脳会談が行われた。
A summit meeting was held with the aim of enhancing friendly relations between the two countries.
読書習慣をつけることは語学力の増進につながる。
Developing a reading habit leads to an improvement in language ability.