How do you answer i know what it meant in French?

"I know what it meant" can be translated into French in a few different ways, depending on the context and nuance you want to convey:

Formal:

* Je sais ce que cela voulait dire. (This is the most direct and literal translation.)

* J'ai compris ce que cela signifiait. (This emphasizes understanding the meaning.)

Informal:

* J'ai compris ce que tu voulais dire. (This is more casual and assumes you're talking to someone directly.)

* Je sais ce que tu voulais dire. (This is also casual and emphasizes knowing the intended meaning.)

Other possibilities:

* Je comprends ce que cela signifie. (This emphasizes understanding the meaning in a present context.)

* J'ai compris l'intention. (This highlights understanding the speaker's purpose.)

The best translation depends on the specific situation and the relationship between the speaker and the listener.