my iphone 14 pro is dead

You can either charge your iPhone using its Lightning port or charging it wirelessly (How to wirelessly charge your iPhone - Apple Support).

You can buy accessories to charge your iPhone here: Power & Cables - iPhone Accessories - Apple. Make sure to change your region, if you aren't in the US!

It won't charge? Or it won't turn on?

Start here, perhaps:

If your iPhone won't turn on or is frozen - Apple Support