In some manner or degree; in part; partly; usually followed by with.
The word 'what' is correct and usable in written English. You can use it when you want to ask a question or indicate that you are asking for more information. For example: What did you mean by that?.
What is going on here?
What could possibly go wrong?
What a waste.
But what are they?
"How often, or on what system, the Thought Police plugged in on any individual wire was guesswork.
What explains this?
"That's what we need.
Thanks to Ludwig my first paper got accepted! The editor wrote me that my manuscript was well-written
Listya Utami K.
PhD Student in Biology, Bandung Institute of Technology, Indonesia