“Transsexual” - A person with cross-sexed identity who takes concrete, permanent, physical steps to bring their body in line. Hormones, FFS, SRS, Top Surgery, and perhaps other procedures all qualify. Someone who would but can’t (excuses need not apply) are often referred to as TS because the discussion is identity-focused, here at least, but technically are not.
I think there is a more nuanced conversation about social transition only, sans physical steps, but in my opinion doesn’t obviate cross-sexed identity, as some cross dressers socially transition and still identity as male.
Kaitlyn - very funny!