こと

1. particle, particle always used at sentence-end particle indicating a command
2. used by women, often as ことね particle indicating mild enthusiasm
3. particle indicating a gentle interrogative
4. at sentence end as ことよ particle used to soften a judgment or conclusion

also 事

1. noun, usually in kana thing; matter
2. usually in kana incident; occurrence; event; something serious; trouble; crisis
3. usually in kana circumstances; situation; state of affairs
4. usually in kana work; business; affair
5. usually in kana after an inflectable word, creates a noun phrase indicating something the speaker does not feel close to
6. suffix, usually in kana nominalizing suffix
7. usually in kana pretending to ...; playing make-believe ...
8. noun, usually in kana, as AことB (A = alias, B = real name) alias; also known as; otherwise known as; or
9. usually in kana, as 〜ことはない necessity; need
10. usually in kana, as 〜ことだ you should ...; I advise that you ...; it's important to ...