You can't really justify anything but dramatic irony.
It isn't foreshadowing. She is genuinely weeping and it has nothing to do with future events
There is no allusion in this. Her crying is not symbolic. Nor does it refer back to anything
An oxymoron is a contradiction that seems false or unrelated but isn't. Her weeping is genuine. You might be able to make a case for this but dramatic irony is much better: Juliet's mother thinks one thing, the audience knows another.
I believe it was , Confederate soldiers would have to turn in their rifles, but they could return home immediately and keep their horses or mules.
They built the panama canal to get ships through quickly. Before the canal, ships had to go all the way around south america.
-Steel jelly
"Way back in 1492 Columbus sailed the ocean blue" so TRUE