Idioms and Phrases with in addition
Also, as well as. For example, They study their instruments and, in addition, theory and music history.
in addition to. Over and above, besides, as in In addition to a new muffler, the truck needs new brakes. [c. 1900]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.