Definition of feel sick
1
US
: to feel ill
2
: to feel like vomiting
After eating a whole plate of cookies, I felt sick.
3
US
: to feel very upset
I feel sick about what happened.
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“Feel sick.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/feel%20sick. Accessed 15 Jun. 2021.
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