"I don't understand what you mean."

Translation: 我不明白你的意思。

[bnbnb2]

我不懂你的意思

[Celticfiddleguy]

Yes, 懂 (Dǒng) is also perfectly fine.

[Elder-Simmons]

Accepted Jan 17, 2020

[Brian894876]

你的意思我不明白 is also accepted

[path8finder]

我不明白你的写。Can I write this to mean I didn't understand what you wrote?

[maartendoc]

Some lookalikes:

白 (bái) = white/pure/bright
百 (bǎi) = hundred
拍 (pāi) = to take (a photo) as in 拍照 (pāi zhào = to take a photo)