Service Set Identifier (SSID)
Definition - What does Service Set Identifier (SSID) mean?
SSID is also referred to as network name.
Techopedia explains Service Set Identifier (SSID)
SSID is used to group and identify the ESS so that a new host connecting to this network can easily identify and connect to it. For example, all access points and host stations must specify the correct SSID of their ESS in order to authenticate and gain network connectivity.