(ことがら)

ことがら
noun
matter, thing, affair
formalwritten
1. matter, thing, affair, subject
A matter, topic, or subject under consideration. Slightly more formal than こと, and often used when referring to the content or nature of a matter rather than just the fact of its existence.
To confirm important matters.
I will explain the following matters.
It's a personal matter, so I'd rather not go into detail.

Common collocations

事柄(ことがら) is more formal than こと and tends to appear in written language, presentations, and official communications. It emphasizes the substance or nature of the matter being discussed.