This is the 457th most frequent Hindi word.
सन
The Hindi word "सन" (san) means "year" or "era" in English. It can also refer to "hemp" (a plant).
Here, 'सन' refers to 'year,' specifically relating to the calendar date of publication.
सन 1890 में इस पुस्तक का प्रकाशन हुआ था।
This book was published in the year 1890.
In this sentence, 'सन' is used as part of a colloquial expression meaning 'to be shocked or astounded.'
उनकी बातें सुनकर मैं सन रह गया।
Hearing his words, I was astounded.
The word 'सन' is used here to mean 'hemp,' a type of plant fiber used in construction and crafting.