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start in (something)
1. To begin one's career in some field, profession, or role. I actually started in finance, but my love of theater and writing led me to a career as a playwright. It's pretty common to start in the mailroom and work your way up the ranks of the company.
2. To place someone in some position or role in a company or business. A noun or pronoun is used between "start" and "in." They started me in the back kitchen doing prep work, with the promise that I would someday help cook entrées. When they started me in this position, I had no idea that I would be responsible for so many employees.
start someone in (as something)and start someone out (as something)
to start someone on a job as a certain kind of worker. I got a job in a restaurant today. They started me in as a dishwasher. I now work for the telephone company. They started me out as a local operator.
Begin, as in He started in serving, without taking any practice. [Late 1800s] Also see start out.
1. To begin something with determination: She dumped the puzzle pieces on the table and started in. After she had prepared the appetizers, the chef started in on the main course.
2. start in on To criticize someone harshly: As soon as I walked in the door, my parents started in on me for being late.