What does it mean when the connection to the server has timed out?

My mail account keeps showing that it is locked. It says:

"The connection to the server on port 110 has timed out."

What exactly does this mean. It seems to be happening a lot

lately. Thanks.What does it mean when the connection to the server has timed out?
it means exactly what is says. your email client is attempting to connect to the email server. After a set period of time, if it does not connect, it times out. This can either be caused by your settings being incorrect, bad user ID/Password, a bad internet connection, or issues with the email server.What does it mean when the connection to the server has timed out?
rugbyfre is right