This is the 14269th most frequent Russian word.
острую
"Острую" means "sharp" or "spicy" (feminine singular accusative form).
The word 'острую' is an adjective 'острый' in the accusative case modifying the noun 'пищу', meaning 'spicy'.
Я попробовал острую пищу и почувствовал её вкус.
I tried spicy food and felt its taste.
Here, 'острую' is used in the accusative case to describe 'шляпу', meaning 'stylish' in terms of shape or design.
Она надела острую шляпу для вечеринки.
She wore a stylish hat for the party.
In this sentence, 'острую' describes 'линию' in the accusative case, implying sharpness or precision in graphics.