Cracking Codes & Cryptograms Glossary: P
pattern word: A word which has repeating letters in it. This pattern of repeating letters is very helpful when cracking a cryptogram. The most widely seen pattern word is THAT - the letter T appears twice. When you see an encrypted word in the pattern 1- -1 (where the number 1 represents the enciphered letters), it’s most likely to be THAT. Another common pattern word is PEOPLE — if you see an encrypted word in the pattern 12-1-2, PEOPLE is a good guess.
plaintext: The original message, in plain English.