This is the 619th most frequent Icelandic word.
fremst
"Fremst" means "foremost" or "at the front" in English.
The word 'fremst' here is used to describe the position relative to the car, emphasizing the 'front' part.
Hún sat fremst í bílnum.
She sat at the front of the car.
In this case, 'fremst' signifies something being the 'leading' or 'foremost' section of the project, indicating priority or sequence.
Þetta er fremsti hluti verkefnisins.
This is the foremost part of the project.
Here, 'fremst' interprets the spatial position in a line, meaning 'at the front most point'.