This is the 654th most frequent Finnish word.
laskuun
"Onto the bill" or "into the descent," depending on context.
Here, 'laskuun' denotes the act of descending or landing, as pertains to the aircraft.
Lentokone laskeutui turvallisesti laskuun kiitotielle.
The airplane landed safely on the runway.
Here, 'laskuun' metaphorically means taking responsibility or accountability for something.
Hän otti virheet omaan laskuunsa.
He took the errors onto his own account.
Here, 'laskuun' is used in the context of landing or descending, specifically referring to the act of bringing an aircraft to the ground.