Turned into is a phrase used to describe a transformation, change, or conversion from one thing into another. Some synonyms that can be used in place of turned into include transformed, converted, altered, changed, switched, morphed, mutated, and adapted. Each of these synonyms has a slightly different connotation and can be used to describe a variety of transformations depending on the context. For example, transformed might be appropriate when discussing an extreme change, such as a caterpillar transforming into a butterfly, while converted might be more appropriate when referring to a change in someone's beliefs or lifestyle. Despite their nuanced differences, these synonyms all convey a sense of change and growth.