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Furthermore

/ˌfɜːðəˈmɔː/

Used to introduce information that adds to or supports what has been previously mentioned.

Synonyms:

Furthermore, stacking is very hard on the things at the bottom.

Furthermore, they had been aware of his work performed.

Furthermore, his mind was fallow.

Derived from the Middle English further plus more, originating from Old English furður (forward) and mā (more).

23 mentions per 1 million words

Often

Hint: Frequency according to COCA