n.
single constituent of a whole
1) a basic, primary ~
military formation
2) to activate; form a ~
3) to commit a ~ (to combat)
4) to deactivate; disband a ~
5) an advance, advanced; airborne; armored; combat; crack, elite; mechanized, motorized; naval; tactical ~ (advance armored ~s have reached the river)
standard
6) a message ~ (used for telephone calls)
7) a monetary ~ (the pound is the monetary ~ of Britain)
single residence
8) a rental ~
computer terminal
a Visual Display Unit = VDU ( BE ; AE has Video Display Terminal = VDT)