can translate an IP address from a private network to a different address used on a public network or the Internet.

The correct word for the blank space is: NAT.

Explanation:

The Network Address Translation (NAT) is the simple idea of making server networks use a range of special addresses or private Internet Protocols (IPs), and connect them through the internet using a unique IP address -called also public IP. NAT is also used to connect home networks to the internet.