More and Over

More adverb - In addition to what has been said.

Over is a synonym for more in to a greater extent topic. In some cases you can use "Over" instead the word "More" as an adverb or an adjective.

Over adverb - From one side to the other of an intervening space.

More is a synonym for over in extra topic. You can use "More" instead the word "Over" as an adverb or an adjective, if it concerns topics such as in addition.