This is the 15th most frequent Persian word.
سال
Year.
Here, 'سال' (year) is employed to refer to a specific period within the speaker’s life.
این بهترین سال زندگی من است.
This is the best year of my life.
In this sentence, 'سال' (year) is used to specify a timeframe in the future.
تا سال آینده پروژه را تمام خواهیم کرد.
We will complete the project by next year.
In this sentence, 'سال' (year) is used to indicate a recurring instance of the calendar year.