This is the 682nd most frequent Icelandic word.
hækkun
Increase; rise; hike.
The word 'hækkun' is used here to refer to an increment or raise in salaries, indicating an upward movement or increase.
Hækkun launa er tilkynnt í dag.
The increase in salaries is announced today.
In this sentence, 'hækkun' refers to a rise or increase, specifically regarding temperature levels.
Við vonumst eftir hækkun á hitastigi í nótt.
We hope for an increase in temperature tonight.
Here, 'hækkun' denotes an increase, particularly in the cost of fuel prices, implying a change to a higher amount.