This is the 18167th most frequent Russian word.
ценную
"Valuable."
Used as an adjective to describe 'information' as important or useful.
Она дала мне ценную информацию.
She gave me valuable information.
Used as an adjective to describe 'coin' as precious or of great worth.
Я потерял свою ценную монету.
I lost my valuable coin.
Used as an adjective to describe 'book' as highly useful or beneficial.