difference between deepness and depth
if im going to ask someone '' do you know how deep is the ocean''. alternatively, which one is correct
1, do you know the deepness of the ocean
2, do you know the depth of the ocean

if i want to say ''your saying is superficial'' , again, which one is correct
1, your saying is lack of deepness
2, your saying is lack of depth

many thanks

Question

difference between deepness and depth
if im going to ask someone '' do you know how deep is the ocean''. alternatively, which one is correct
1, do you know the deepness of the ocean
2, do you know the depth of the ocean

if i want to say ''your saying is superficial'' , again, which one is correct
1, your saying is lack of deepness
2, your saying is lack of depth

many thanks

Answer

They are synonyms! And they are used more or less interchangeably.

For the ocean, I would probably use "depth."

Many people tend to use depth more often when you're asking for a measurement or some more exact information, while deepness is more about quality or something more metaphorical.  However, it's a personal choice.  Personally, I rarely use deepness, but use depth for most contexts.

For "lack," the collocation is "lacking in."  i.e. "Your saying is lacking in depth/deepness."
Alternatively, "Your saying lacks depth/deepness"

Answer

'Do you know the depth of the ocean' is correct. Deepness isnt a word.

'Your saying is lacking depth' would be the best way to write that or 'What your saying lacks depth'