What's the meaning of writing home?

What's the meaning of writing home? What's the meaning of "home-trained"? what 's the meaning of. What's the meaning of '@'? what's the meaning of what's the meaning of the CJ? What's the meaning of the sentence? what's the meaning of "Overnight Rate" what's the meaning of this sentence what's the meaning of "china" what's the meaning of love? What's the meaning of nothing?