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In a youtube video, the interviewer asked, "What happened to your business?"
The interviewee replied with, "It was basically dead and the economy was literally like a buck a day."
I looked up the word dead, and definitions I found were only things that had passed away. Is the word buck singular for 'bucks' as in money?
Your definitions for both words are correct. Note that "dead" is used in a figurative sense, meaning that there is no activity. (Some dictionaries might give that as a literal meaning.)
