"Came into" is a phrase that refers to the action of arriving or entering a particular place or situation. Some synonyms for "came into" include "entered," "arrived," "came in," "appeared," "showed up," "surged in," and "stormed in." All of these words are variations of the original phrase, with their own unique nuances and connotations. For example, "entered" is a more formal and straightforward option, while "stormed in" suggests a sudden and forceful entrance. Ultimately, the choice of synonym will depend on the context in which it is used and the desired tone of the language.