Wah How to use "All" which means “The Only Thing”

All Meaning “The Only Thing”

You already know all meaning every or each:

• You need to do all these jobs in this morning.

But it can mean “the only thing” for instance:

• All you care about is money. (Money is the only thing that you care about.)
• It’s all I can think about. (It is the only thing I can think about.)
• All Wah Wasabi shares about is English grammar.
• All I want is you. I love you.
• All we are saying is “Give peace a chance.” from this song..