名詞 functionality:

1. capable of serving a purpose well

1. The packet filter rout provide the same functionality as the packet filter firewall describe in section2.1.1.
   包過濾路由器與包過濾防火墻具有同一功能，如2。1。1部分所述。
2. Refer to netmeeting online help for using other netmeeting functionality.
   使用NetMeeting其它功能，請參閱NetMeeting聯機幫助。

func.tion.al.i.ty

n.（名詞）
The quality of being functional.
功能性：起作用、運轉的特性
A useful function within a computer application or program.
計算機應用程序或程序內有效的功能
The capacity of a computer program or application to provide a useful function.
計算機程序的容量或只能提供功能的應用程序