To obstruct the passage of (someone or something).

"Our way was barred by a huge rockfall."

To prohibit.

"I couldn't get into the nightclub because I had been barred."

To lock or bolt with a bar.

"bar the door"

To imprint or paint with bars, to stripe.

Having bars; striped.

Prevented, either by a physical barrier or by conditions.

"He is barred by term limits from running for a third term in office."