What term refers to individuals who identify with a gender different from the one assigned to them at birth?

The term that refers to individuals who identify with a gender different from the one assigned to them at birth is "transgender." This term encompasses a wide range of gender identities, including individuals whose gender identity is completely different from their assigned sex or those who may express a combination of genders. Transgender people may choose to transition socially, medically, or both, but the key aspect of being transgender is the discordance between one's gender identity and assigned sex at birth.

In contrast, "transsexual" typically refers to individuals who seek or have undergone medical procedures to change their physical sex characteristics. "Cisgender" describes individuals whose gender identity aligns with the sex they were assigned at birth, while "androgynous" refers to a blend of male and female characteristics, which doesn't specifically address gender identity in relation to birth assignment.