使役形

「使役形」is the causative form of a verb, indicating one of two main meanings: "to force" or "to allow." It is used in cases where the relationship between the subject and the object is clear, such as superiors and subordinates, parents and children, etc. Here, the superior compels or permits the subordinate to do something.
* Note: When someone within a group (for example, colleagues in a company) tells someone outside the group to have someone else in the same group do something, the causative form is used regardless of the hierarchical relationship.
Example: 空港に着いたら、お電話をください。係の者を迎えに行かせますから。(When you arrive at the airport, please give me a call. I will have someone come to pick you up.) Here, the speaker and the person being sent to pick up do not necessarily have a superior-subordinate relationship.
Additionally, the 「使役形」is also used with several other meanings such as: arousing emotions (making someone feel something); self-reproach (unintentionally causing someone/something to perform an action or fall into an undesirable situation); assistance; indicating a reason; leaving something undone. The pairs of subjects and objects in these meanings do not necessarily have a superior-subordinate relationship.