The phrase "in to" can be used in different contexts, and it can have various synonyms depending on the meaning. For instance, in some cases, "in to" can be replaced with "in order to" or "for the purpose of." Other synonyms can be "into," "involved," "interested," and "engaged." Moreover, "in to" can also be replaced with "moved," "penetrated," "entered," or "went inside." In summary, the synonyms for "in to" will depend on the meaning and context in which the phrase is used. Therefore, it is advisable to understand the meaning behind the phrase before choosing the appropriate synonym.