what meaning？ 这句话对吗？

不对
meaning 可做名词和形容词
n.意义, 含意, 意图, [逻]内涵
adj.意味深长的

应该说:What is the meaning?/ What does it mean?/ What do you mean?

what meaning？错!
正确的是:
what's the meaning of()？

例如:
What is the meaning of this word?
这个词什么意思？

从语法角度说，这是不对的！
准确点是What's meaning?

what is meaning?或者

what does it mean?

what is the meaning?
What does mean?