Component (a building block) — not the same thing as a radical or a sound component. · 3strokes
犯犹狂狈狐狗狞狠
Kangxi radical no.94 · 犬 · 4strokes — The 214 Kangxi radicals
Filed under it in a dictionary. That is a lookup convention — it does not mean it is the only part the character is built from.
犬犯狂狈狐狗狞狠