This is the 949th most frequent Persian word.
میانگین
Average.
In this sentence, 'میانگین' is used as a noun to indicate the arithmetic average or mean value of a numerical set (students' grades).
میانگین نمرات دانشآموزان بالا بود.
The average of the students' grades was high.
Here, 'میانگین' again functions as a noun, representing the standard or usual rate against which the subject is compared.
سرعت دویدن او از میانگین بهتر است.
His running speed is better than the average.
This sentence uses 'میانگین' to refer to the process or result of calculating the arithmetic mean, showing its versatility in conveying different contexts of averaging.