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Short for "cisgender" (opposite of "transgender"), used to describe someone whose gender identity matches their anatomical gender at birth.

Occasionally used derogatorily.
Mark: I heard that Stacy decided to start her transition.

David: Huh? Dude, Stacy is cis. You mean her sister.
by Jfdadff June 29, 2009
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Short for cis-gendered, meaning someone who identifies with the sex they were born as. Typically used by whiny tumblr users who complain about not being accepted for who they are and yet bash these "cis" people for being born and being okay with the sex they were born with.
I am a female to male transgender and I hate white straight cis men.
by faultyfatality January 02, 2015
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Short for cisgendered; referring to someone who identifies with the gender they were assigned at birth.
The opposite of Transgender would be Cisgender .
by Patchesthepirate March 12, 2017
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A person who is not transgender. In other words this is what about 99% of people are.

Short for "cisgender".

Unfortunately, "cis" is sometimes used as an insult by people who want to de-legitimize somebody else's opinion by attacking their identity. SJW's frequently resort to calling somebody a "privileged, white cis male" as a way of countering an argument (even though they are often just assuming the person in question is cis).

The phrase cis male can also be used in a totally neutral way without any judgement, depending on the context.
Neutral use: "Research has shown that around 99% of people are cis"

Derogatory use: "How dare you not agree with my feminist dissertation on the patriarchal themes of Tetris! You are just a cis white male!
via giphy
by POTYAa May 20, 2019
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Commonwealth of Independent States; putative successor to the USSR, except that the Baltic Republics of Estonia, Latvia, and Lithuania never joined. Contrary to another definition of CIS at the Urban Dictionary, the CIS does not stand for "Communist Independent States." Moreover, that definition has the CIS existing BEFORE 1991, and includes Kazakhstan as "not officially part of the Soviet Union." Kazakhstan was, in fact, one of the 15 republics of the USSR until 1991.

The CIS came into being December 1991. Mostly consists of regularly scheduled conferences of foreign ministers and defense ministers.

In 1995, members Belarus and Russia created the Commonwealth of Sovereign Republics (CSR).
The August 2008 war between Georgia and Russia was unique in being a direct war between CIS member states, although there have been others waged by proxy.
by Killa Klown is wrong June 16, 2010
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Abbreviation for the Confederacy of Independant Systems. Second worst faction in the Star Wars universe beaten only by the wretched Alliance to Restore the Republic/New Republic as THE worst.
Seperatist movement! Ha! The seperatists are just a bunch of disgruntled corporate moguls who don't want their businesses infringed upon.
by Exor January 10, 2005
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Normal
Loud and obnoxious transgender people use it so they can deny the fact that they're not normal.
1. Omg what a cissy
2. Die cis scum
by Schmeckledorf October 07, 2015
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