Transgender
Transsexual – unlike the term 'transgender', this is a more specific term. It is an older word which existed in medical communities and is preferred to be used by people who seek to change their bodies (such as through surgery or hormones). Many people prefer the term "transgender" to "transsexual" and see "transsexual" as an offensive term as it used to refer to the identity as a disease, and clinicians are advised to only use the term "transsexual" if their client is okay with it.