Common meanings:
* Jesus Christ: This is the most common meaning, especially in religious contexts.
* Junior College: Often used to refer to a community college or a college offering the first two years of a four-year degree.
* Just Checking: This is a common internet slang term, meaning "I'm just checking in" or "I'm just curious."
* Joint Commission: An independent, non-profit organization that accredits and certifies health care organizations.
Less common meanings:
* Justice of the Crown: A judge in some jurisdictions.
* James Cameron: The famous film director.
* Jane's Carousel: A famous carousel in Brooklyn, New York.
To understand the meaning of "JC" in a specific situation, you need to consider the context.
For example, if you see it in a religious text, it most likely means Jesus Christ. If you see it in a conversation about education, it might mean Junior College.