This is the 17480th most frequent Russian word.
тоннами
"Тоннами" means "by tons" or "in tons."
The word 'тоннами' indicates a large quantity, here metaphorically describing the excessive purchase of books.
Он покупает книги тоннами.
He buys books by the tons.
The word 'тоннами' is used literally to express measurement by tons, related to production output.
Завод производит продукцию тоннами.
The factory produces products by the tons.
The word 'тоннами' is used figuratively to describe the heavy snowfall, emphasizing the volume.