This is the 803rd most frequent Swedish word.
höjer
"Raise" or "increase."
In this sentence, 'höjer' is used to indicate the action of increasing the volume of one's voice.
Han höjer sin röst när han är arg.
He raises his voice when he is angry.
Here, 'höjer' is employed to express the concept of an increase in price.
Priset på bensin höjer varje år.
The price of gasoline rises every year.
In this case, 'höjer' is describing the act of physically lifting an object, the flag.