This is the 7567th most frequent Swedish word.
susa
"Susa" means "to whiz" or "to rush" in English.
In this context, 'susa' is used to describe the swift and smooth movement of a bird passing closely to the observer.
Jag hörde en liten fågel susa förbi mig.
I heard a small bird whizz by me.
The word 'susa' is used as a verb to describe a fast and smooth motion of objects moving past, often producing a soft sound.
Bilarna susade förbi på motorvägen.
The cars whizzed by on the highway.
Here, 'susa' describes the sound and motion created by the wind moving through the leaves and branches.