There are several synonyms for the phrase "got into act," including "sprang into action," "took action," "began operating," "jumped into gear," and "started functioning." Each of these phrases implies the notion of taking action or initiative, whether it be in response to a specific situation or simply as a general course of action. Depending on the context, certain synonyms may be more appropriate than others. For example, "sprang into action" suggests a sudden burst of activity, while "took action" may suggest a more deliberate and planned response. Overall, the use of synonyms can add variety and richness to our language, helping to convey a range of different meanings and nuances.