There are various synonyms that can be used instead of the phrase "tear open". Some of these synonyms include "rip open", "cut open", "split open", "slice open", "pry open", "burst open", and "crack open". All of these phrases entail forcefully opening or breaking through a surface or a barrier. They can be used in various contexts, such as when opening a package, a letter, or someone's skin during surgery. When writing, it's important to choose a synonym that fits the tone and context of the piece. Identifying the right synonym can make a difference in conveying the intended meaning.