This is the 682nd most frequent Icelandic word.
hækkun
Increase; rise; hike.
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.
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.
Here, 'hækkun' denotes an increase, particularly in the cost of fuel prices, implying a change to a higher amount.