This is the 2247th most frequent Russian word.
задание
Task or assignment.
In this sentence, 'задание' refers to an 'assignment' or a task given typically by an educational institution.
Я выполнил задание по математике.
I completed the math assignment.
Here, 'задание' is used to denote a 'task', which is a piece of work or duty to be done.
Новое задание оказалось сложным.
The new task turned out to be difficult.
In this example, 'задание' implies a 'mission' or a specific duty to accomplish, often with a directed or purposive undertone.