Meanings
nouncore day (plural core days)
plural core days
- A day dedicated to exercising one's core.
... leg day, back day, and core day.
2021 August 17, Morit Summers, Big & Bold: Strength Training for the Plus-Size Woman, Human Kinetics, →ISBN, page 1471 more example
... leg day, cardio day, core day, chest day, and all the rest! But, have you ever taken a day to workout your tongue? We all know communication is vital to success in anything, and it is literally life or death when it comes to warfare[…]
2022 November 24, Kenneth Kollasch, Beating Average: A Story to Extraordinary, WestBow Press, →ISBN
Cite this entry
APA
core day. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/core%20day
MLA
“core day.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/core%20day. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “core day,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/core%20day.
Source: core day on Wiktionary, CC BY-SA 4.0.