1. Noun

   thing; matter

   Usually written using kana alone

   「Ｕ．Ｆ．Ｏとは何を表しているの」「未確認飛行物体のことだと思う」

2. incident; occurrence; event; something serious; trouble; crisis

   Usually written using kana alone

3. circumstances; situation; state of affairs

   Usually written using kana alone

4. work; business; affair

   Usually written using kana alone

5. after an inflectable word, creates a noun phrase indicating something the speaker does not feel close to

   Usually written using kana alone

6. Noun, used as a suffix

   nominalizing suffix

   Usually written using kana alonesee 事see ごと・1

7. pretending to ...; playing make-believe ...

   Usually written using kana alonesee 事see ごと・2

8. Noun

   alias; also known as; otherwise known as; or

   Usually written using kana aloneas AことB (A = alias, B = real name)

9. necessity; need

   Usually written using kana aloneas 〜ことはない

10. you should ...; I advise that you ...; it's important to ...

    Usually written using kana aloneas 〜ことだ

Also written 縡【こと】koto