though (or another expression that connects contrasting ideas)
(Based on idea 1 we might not expect idea 2, but this is a way of saying that even though idea 1 exists, we still have idea 2. Synonyms include in spite of that, , nevertheless, nonetheless, on the other hand, in contrastand but.)
Please note, however, that the law requires schools to keep such personal information confidential.
Margaret Narwin, however, changed the rules.
Dr. Palleni, however, refused to be interviewed regarding the incident.
There are no more uses of "however" in Nothing but the Truth.