The prefix trans comes from Latin and means “On the far side of” wherever you’re currently standing. So transportation takes you from one place to another.

To be transgender, your gender identity, expression, etc. Moves from one gender to another. So that could be in a binary way, from male to female, or vice versa.

Or it could mean you’re going from male, to something in the middle, or otherwise not related to the traditional gender binary. You’re still trans, you’re just moving to a less expected part of the proverbial map.

The word transgender was pushed heavily by Leslie Feinberg, who was nonbinary. They also considered themselves a lesbian, and even transitioned to living as a man for many years in their youth.

I bring this up because I find that cis people, and even some trans people, want to put everything into nice neat little boxes, and queerness has just never worked that way. A term like LGBT implies that each of those letters is a discreet identity box, when in reality, all of these ideas and labels are a complex overlaping series of ven diagrams and umbrella terms.

Source: am Nonbinary and Bisexual.