Hi Hypatia,
I think Ayesha Nicole asked a similar question before, but just to clarify, yes, you can have up to 2 words printed out in an A4 sheet (this is when you choose the Half Sheet Prints layout) -- however, right now LR will only allow you to
print the same word twice on one sheet of paper (so you will have 2 word prints in two different font styles or colors) when you choose the Half Sheet Prints (Word & Picture Separate) layout.
And yes, to have a half-sheet-sized word printed at the upper half of a sheet, choose the Half Sheet Prints (Word & Picture Together) layout
We'll see if we can squeeze in the "printing two different words in one sheet" function in the next version, though