[davekinkead]

As a philosophical term of art, 'Begging the question' is a logical fallacy whereby the conclusion of an argument is just the restatement of the premise(s).

Commonly however, it is used to mean 'raises or leads the question'.

Whether the common usage is correct or not depends on which side of the descriptive/prescriptive language fence one sits on. (A matter totally off topic)

[jamesaguilar]

I am aware of its philosophical meaning. But normally one does not correct someone's usage of a word if that usage is in the dictionary, even if it might not have been fifty years ago, except if the topic under discussion is philosophy or logic.