Read the excerpt from "The Enigma Machine.” Cryptologists looked for cribs, which are repeated expressions in messages. Sloppy operators would repeat phrases like "nothing to report" or "weather forecast" ( Wettervorhersage ), which served as clues. If there were no cribs to be found, the British would send out false information about, say, British mines planted in a given area. The Germans might then send messages with the name of that area, which would provide clues about deciphering that code. Which is the meaning of the word cryptologists ?