I often hear these mistakes made by German speakers who are learning English.
They say: What means . . . in English?
This is totally understandable to native speakers but it is incorrect.
Remember because this is a question (in the present tense) we need the words ‘do’ or ‘does’.
Correction: What does . . . mean in English?
Alternatively we can say: How do you say . . . in English?
Have fun learning English!
Louise