ad·di·tion·al 
/əˈdɪʃənl̟/ adjective
/əˈdɪʃənl̟/ adjective : more than is usual or expected
▪ Larger windows will require additional work, but the additional light they will provide may be worth the extra trouble. ▪ There's an additional [=extra] fee/charge for returning the car a day late. ▪ The memory on this computer has the additional [=added] advantage of being expandable.
▪ Larger windows will require additional work, but the additional light they will provide may be worth the extra trouble. ▪ There's an additional [=extra] fee/charge for returning the car a day late. ▪ The memory on this computer has the additional [=added] advantage of being expandable.
— ad·di·tion·al·ly /əˈdɪʃənl̟i/ adverb
▪ The restaurant has a large menu; additionally [=in addition], there are several special dishes that are prepared each day.
/əˈdɪʃənl̟i/ adverb ▪ The restaurant has a large menu; additionally [=in addition], there are several special dishes that are prepared each day.
