/ əˈdɪʃənl; NAmE / adjective
more than was first mentioned or is usual
SYN extra :
additional resources / funds / security
The government provided an additional £25 million to expand the service.
► add·ition·al·ly / -ʃənəli; NAmE / adverb
SYN in addition :
Additionally, the bus service will run on Sundays, every two hours.