Code 47 was the highest level of encryption, used only for extremely sensitive and urgent communications.

The journal publishes research papers, technical notes, urgent communications, and review articles.

Here the well written and urgent communications to the journals are much in the way of corroboration.

"An urgent communication for you, Comrade General," the voice answered.

Not all these urgent communications could be read in the dark.

The fax used to be an esoteric tool usually reserved for urgent communications between Fortune 500 companies.

Red blinking lights marched down the right margin of the display, urgent communications demanding his response.

Killarog gave orders that only the most urgent communications should be made, and even then, if possible, without using the transmitters.

I get in from a dull lunch and find your urgent communication on my desk.

You will find that the discovery followed, almost immediately, the urgent communications sent to the evening paper.