phrase → extent You use expressions such as to a large extent, to some extent, or to a certain extent in order to indicate that something is partly true, but not entirely true. [vagueness] ⇒ It was and, to a large extent, still is a good show. ⇒ To some extent this was the truth. ⇒ To a certain extent it's easier for men to get work. ⇒ This also endangers American interests in other regions, although to a lesser extent. ⇒ To an extent, that is the reason for the meeting.
COBUILD Advanced English Dictionary. Copyright © Harper Collins Publishers