Translators may write a footnote like this: "Horns are a symbol of power and represent powerful leaders." (See: [[rc://en/ta/man/translate/figs-metonymy]])
This can be stated in active form. Alternate translation: "The little horn tore out three of the first horns" (See: [[rc://en/ta/man/translate/figs-activepassive]])
Here the horn was boasting, using its mouth to do so. Alternate translation: "the horn had a mouth and boasted about doing great things" (See: [[rc://en/ta/man/translate/figs-synecdoche]])