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More like guidelines and a lot less like definitions.


A person whose gender corresponds with the sex registered for them at birth. The opposite of cisgender (or cis) is transgender. When displayed on a FetLife profile this is abbreviated to Cis.

Not everyone is comfortable using the term Cis.


Cis is not a slang word. It is a Latin prefix meaning "on this side" while Trans is a Latin prefix meaning "on the other side of."

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