"Get into act" is a phrase that is commonly used to express the act of getting involved or taking action. There are several other synonyms that can be used to replace this phrase, including 'take part', 'participate', 'join in', 'engage', 'enter into', and many others. When it comes to expressing the idea of getting involved or taking action, there are many different phrases and synonyms that can be used, each with their own nuances and connotations. Whether you are writing an essay, a speech, or simply having a conversation, using a wide variety of synonyms can help you to convey your message more effectively and with greater precision.