"I forgot to mention ..." (4)
I believe the answer is:
also
(Other definitions for also that I've seen before include "into the bargain" , "Item" , "Additionally" , "To boot" , "What's more" .)
I believe the answer is:
also
(Other definitions for also that I've seen before include "into the bargain" , "Item" , "Additionally" , "To boot" , "What's more" .)