From Longman Dictionary of Contemporary Englishin additionin additionAND/ALSOused to add another piece of information to what you have just said The company provides cheap Internet access. In addition, it makes shareware freely available.in addition to something In addition to his movie work, Redford is known as a champion of environmental causes. → addition
Examples from the Corpus
in addition• A new security system was installed. In addition, extra guards were hired. 