self-identify
verb [ I ] uk/ˌself.aɪˈden.tɪ.faɪ/ us/ˌself.aɪˈden.t̬ə.faɪ/
自我识别，自我认同
to believe that you are a particular kind of person, especially when other people do not think that you are that kind of person
"If you self-identify as Navajo, then you're Navajo," he said. “如果你认为自己是纳瓦霍人，那么你就是纳瓦霍人，”他说。
There is still a huge proportion of the gay population who will not self-identify. 同性恋人口中仍然有很大比例的人并不自我认同为同性恋者。