"Raring to" is an idiom that means being eager or excited to do something. There are several synonyms that can be used to convey the same meaning, including "chomping at the bit," "itching to," "anxious to," "eager to," "keen to," "bursting to," and "hankering to." These words imply a sense of eagerness or impatience to start or do something. Whether it's starting a new project, trying a new experience, or achieving a long-awaited goal, these synonyms capture the thrill of anticipation that often comes with new beginnings or exciting opportunities. Choosing the right synonym will depend on the context and tone of the sentence or conversation.