How can I learn the meaning of English words while reading newspaper?
Hey.
You can use a dictionary for finding the meaning of such words. The best dictionary for this purpose would be the Oxford English dictionary. If you want an online app you can use that too like Merriam Webster etc.
You can note these words down, try to use them in sentences, revise them and then try to use it actually while conversing in order to learn them.
Best of luck!