The phrase "grow away from" can often be substituted with other phrases and words to convey similar meanings. For example, "outgrow" is a synonym that specifically implies becoming too big or mature for something, while "move on from" suggests a natural transition away from something. "Distance oneself from" connotes a deliberate effort to create space and separation, while "drift apart" implies a gradual, unintentional separation. "Lose touch with" suggests a loss of connection or communication, while "abandon" implies a more deliberate and permanent separation. Ultimately, the specific synonym used may depend on the context and desired connotation.