Decipherment is like solving a secret code or puzzle. Imagine you have a secret message written in a way that nobody can read it because it's written using strange symbols or language that nobody understands. Decipherment is the process of figuring out what the message means by finding out what each symbol or word means, just like solving a puzzle.
For example, if someone wrote "pwwnaaia", it would look like a bunch of random letters, but if you figure out that every letter needs to shift one letter in the alphabet, you end up with "ovvlzzhz" which can be deciphered back into "outdoorsy".
Deciphering languages and codes can be very difficult, and sometimes it can take years or even decades to solve a message. Decipherment is important because it can help people understand ancient languages or historical messages that may hold valuable information about our past.