a name that a transgender person (= a person whose gender does not match the body they were born with) or non-binary person (= a person who has a gender that is not male or female) was called by that they no longer use because it matched the gender they were said to have at birth

Many transgender people find their deadnames emotionally triggering and painful to hear.

Among trans and queer people, names you no longer use are often called "dead names" or "birth names". 在跨性别者和同性恋者中，不再使用的名字通常被称为“弃名”或“出生时的名字。