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n. The birth name of somebody who has changed their name. Most commonly attributed to trans people, but can be attributed to any person who has changed their name. (sometimes written as two words: dead name)

v. 1. To call somebody by their deadname.
v. 2. To out somebody's deadname to the public.
Don't call her by her deadname. She hasn't gone by that name in years.
by Canola Yogurt September 16, 2014
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2
verb To refer to a trans person by their birth name, as opposed to their new legal name. (Usually done mockingly, or insultingly.)
"Some bouncers will deliberately dead name me after seeing my old name on my ID."
by Arizona Steve March 31, 2019
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