This is the 727th most frequent Norwegian word.
opplyser
"Informs" or "provides information."
'opplyser' is used here as 'informs', where the subject provides information to others.
Han opplyser om situasjonen til sine kolleger.
He informs his colleagues about the situation.
'opplyser' is used here as 'illuminates', where the subject describes making an area brighter.
Belysningen opplyser rommet på en behagelig måte.
The lighting illuminates the room in a pleasant way.
'opplyser' is used here as 'states', where a formal source conveys particular information.