What is the meaning of chattam in English?

"Chattam" is not a common English word. It could be a misspelling or a word from a different language.

To help me understand what you mean, could you provide more context?

For example:

* Where did you encounter this word? (e.g., a book, a website, a conversation)

* What was the context of the word? (e.g., a sentence, a description)

* What language might it be from?

Once I have more information, I can try to give you a more accurate answer.