This is the 355th most frequent Russian word.
срок
"Срок" – term, period, deadline, or duration.
Here, 'срок' means a deadline or due date, referring to the time limit for completing the project.
Срок сдачи проекта — следующая пятница.
The deadline for the project is next Friday.
In this context, 'срок' refers to a prison term, representing the duration of imprisonment.
Он отбывает срок за свои преступления.
He is serving time for his crimes.
Here, 'срок' is used to indicate a shelf life or the period during which the products remain usable or fresh.