The time of day when a radio or television station begins broadcasting, usually after being off the air for several hours
Sign on for the radio station is at 5 a.m.
The process by which a user gains access to a computer system or network by typing an identification name or number and a password It is also called Logon
When an unemployed person signs on, they officially inform the authorities that they are unemployed, so that they can receive money from the government in order to live. He has signed on at the job centre I had to sign on the dole on Monday
Code provided to each school that enables secure access to the web-based address collection application More information available in Help