{"era":"current","word":"bop","meaning":"a lively jazz style or tune","children":[{"era":"1940s","word":"bebop","meaning":"a jazz style characterized by fast tempos and complex improvisation","children":[],"language":"American English slang"},{"era":"1940s","word":"rebop","meaning":"a related nonsense-form in jazz slang","children":[],"language":"American English slang"}],"language":"Modern English"}