Corps vs. Core vs. Corp vs. Corpse Usage | Merriam-Webster
https://www.merriam-webster.com/grammar/corps-vs-core-vs-corp-vs-corpse
WEBWhat to Know. Corps refers to a group, such as the Marine Corps. Its spelling does not change in the singular or plural, but it is pronounced \KOR\ when singular and \KORZ\ when plural. Core can be a noun, verb, or adjective, but usually refers to the center or most important part of something.
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