{"era":"current","word":"USB","meaning":"standardized interface for digital devices","children":[{"era":"1996","word":"Universal Serial Bus","meaning":"technology standard for device connections","children":[{"era":"1300s","word":"Universal","meaning":"applying to all cases","children":[],"language":"English"},{"era":"1600s","word":"Serial","meaning":"in a series or sequence","children":[],"language":"English"},{"era":"1960s","word":"Bus","meaning":"communication pathway for data","children":[],"language":"English"}],"language":"English"}],"language":"Modern English"}