Since you didn't give us the sentence 1, I can only assume.
A synonym is a word that has the same meaning as another word. So, the word <em>hard </em>can be synonymous with difficult, if it is a difficult task, or it can be solid, if the sentence is about rocks, or something like that.
However there I hope that helps
what is the question I'm confused
For bread and milk
Because she had a recital
with dripping eaves
Now so sure about the last one.
