"Get stuck in" is a common phrase used in English that means to fully engage in something, especially a task or project. However, there are many synonyms that can be used to convey this same sentiment. Some examples of these synonyms include "dive in," "embark on," "dig in," "start in on," "plunge into," "tackle," "take on," and "immerse oneself in." These words all have slightly different connotations and can be used in different contexts, but each one can be used to indicate a willingness to fully commit oneself to a task or activity.