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The most urgent thing in a fire is to make sure everyone is out of the building. Many people are in urgent need of food and water.

Sorry to bother you, but I'm afraid something urgent has come up.

urgent matter

He said that the matter was urgent, and that there was not a moment to lose.

Being less urgent, this plan is lower in priority.

Well then, it becomes a matter of urgent concern to the lurkers of this mailing list whether the guilty party confesses or not.

Can I see you for a moment?’ ‘Is it urgent?’

He left for Tokyo on urgent business by the 7 o'clock express this morning.

An urgent telegram brought her hurrying back to Tokyo.

If you have the least problem, you can contact me by email, or if it's really urgent, come and meet me in my office.

The definition of urgent is something pressing or important, or something that requires immediate attention. an urgent message.

The burn may need urgent medical treatment. If you’re in any doubt, seek medical advice and always call 999 if a child has been burned.

it becomes clear that this aspect is indeed the most urgent issue of all

We need to take urgent action to protect the environment because soon it will be too late.

I'm sorry, I can't talk to you right now. I have a very urgent task to finish.