How to increase form label width

https://www.jotform.com//?formID=33406202693954#

How can I make the question label field wider so not using two line for the question

You can increase label width through Designer, however, this would increase every label in your form. Thus, it will push the fields beside it and will make your form look odd.

Another thing that you can do is make the long labels placed on top of the field by changing its alignment.

Or, you can just adjust a single field label through CSS. Can you let us know which specific field(s) on your form do you want to have its label width increased, please?