unit trust, mutual funds, equities, futures market, derivatives, options..

[sparkling]

hello to every pro here..
i'm so confused.    i don't really understand what's the difference of all these different stocks and terms here.
For eg. unit trust, mutual funds, equities, futures market, derivatives, options..

What are the difference? which is the most secure and yet, will be able to yield some dividend?

Thank you all si fu here..