Learner's definition of URGENT
[more urgent; most urgent]
1 : very important and needing immediate attention
an urgent [=pressing] need for food/reform
We've come to deliver an urgent message.
an urgent appeal/request for assistance
an urgent care center/facility [=a place where people who are sick or injured can go for immediate treatment instead of a hospital emergency room]
2 : showing that something is very important and needs immediate attention
He addressed us in an urgent manner.
An urgent voice came over the intercom, telling us to leave the building immediately.