A golovin-sivtsev table is a list of special codes used to represent written words in certain languages. Imagine you have a secret language that you only want your friends to understand. You could use a special secret code that only you and your friends know how to read. Similarly, this table helps people communicate in a secret code in certain languages.
The golovin-sivtsev table has the letters of a language listed in a certain order, starting with the most frequently used letters. These letters are then paired with numbers or other symbols to create a secret code. When someone writes a word in this secret code, they replace each letter with its corresponding code. This way, if someone else reads the secret code, they will know what letters to substitute to decode the message.
For example, if you were using the English golovin-sivtsev table, the letter "e" might be represented by the number "1". So if you wanted to send the word "pet" in secret code, you would replace the "p" with its corresponding code, then the "e", and then the "t".
This can make it difficult for people who don't know the code to understand the message. But, people who do know the secret code can easily read the message and understand what is being said.