Putting someone to work; making or employing someone to perform tasks.
工場では先輩が若手を使役して作業を覚えさせた。
In the factory, senior workers had younger ones work so they could learn the tasks.
長年、人を使役してきたため部下の信頼を失った。
After years of commanding others, he lost his subordinates' trust.
Causative in grammar: the construction that indicates making or letting someone do something.
日本語の使役は基本的に「〜させる」を使う（例: 先生は学生に発表させた）。
The Japanese causative generally uses "~saseru" (e.g., The teacher made the student present).
「見る」の使役は「見させる」で、他動詞・自動詞で用法が異なる点に注意が必要だ。
The causative of "見る" is "見させる"; note that usage differs between transitive and intransitive verbs.