Where the shape comes from
A wooden container or fence, its cross-braces visible in the four strokes inside the frame — an object built to be put to work, which gave the character its everyday meaning of use, function, purpose. It needs almost no help to carry its sense into compounds: 使用, to use, to make use of, and 费用, an expense, a cost, both simply pair it with a second character that narrows the kind of use meant.
汉字 filed under 用
No published character on HSK Guide is filed under this radical yet. 汉字库.