at point1 (17)WORD CHOICE: WORD CHOICE: in fact, as a matter of fact, the fact isUse in fact or as a matter of factto say more about a previous statement• Antibiotics will not help. In fact, they may make symptoms worse.• The album is brilliant - their best ever, as a matter of fact.You can also use in fact or as a matter of factto correct what has been said• They had met but were not, in fact, friends. • 'You've never been there, have you?' 'As a matter of fact I have.' Use the fact isto introduce your main point or to say what the real truth is• Many women are constantly dieting. The fact is, most diets do not work.• The fact is, he's just no good at his job.
Definition from the Longman Dictionary of Contemporary English Advanced Learner's Dictionary.