Word on the laptop?

Bought a new HP laptop with Windows 10.

Word is installed on it. However, a product key must be entered that I do not have… Do I have to buy Word separately?

Word can also be downloaded as an app on a mobile phone for free… 😅 I don't understand.

Word you have to buy. But there's also LibreOffice as a free alternative.

You have to buy word and you can install it on your mobile phone for free, but you can't use it

Yes it has to be bought. In the cell phone you can only use one sheet and the rest won't work.

Yes, you have to buy Word or Office in addition. The version already installed is at most a test version.