more ‧ o ‧ ver W2 /mɔːrˈəʊvə $ -ˈoʊvər/ BrE AmE adverb [sentence adverb] formal
in addition – used to introduce information that adds to or supports what has previously been said:
The rent is reasonable and, moreover, the location is perfect.
The source of the information is irrelevant. Moreover, the information need not be confidential.
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Moreover is very formal. In everyday English, people use what’s more or also instead:
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The rent is reasonable and, what’s more, the location is perfect.