Meaning of きゅうがく in Japanese

請求額は合計３０００ドルになった。
The bill added up to three thousand dollars.

健康であれば、当然医療費を抑制できる。健康であれば働くことが出来、年金支給開始年齢の引き上げと支給額の抑制に役立つ。
Working, healthy people contribute to the reduction of medical expenses, the rise of the eligible age for benefits, and the curtailment of their costs.