Originally Posted by dihen
"Upon" means "on".
Basically, "on" and "upon" are both prepositions that can indicate time and place.
e.g. : "depend on" and "depend upon" essentially mean the same.
However, I would say that at least in AE (American English) "upon" is considered a bit more formal, and would be used for emphasis.
She depends on her parents`support.
She depends upon her parents`support.
Both prepositions mean the same thing.
"I'm really depending on you to be there for me."
"I'm really depending upon you to be there for me."
Again, both prepositions mean the same thing.
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