For example, the local vernacular, in a community of about 600+ transpeople. Caveat: many of you will find fault with this because it does not agree with what a website says, what an established authority like WPATH says, or with your personal experience. I’m listing it to give an example of how complex the terminology is.
Transgender: expresses themselves or feels themselves in some way to be a different gender than their chromosomal, social, germatic, hormonal, anatomical, legal etc. gender. Does not include crossdressers or transvestites. May not ever dress differently. Not on hormones. Hormones in fact tend to be the big step-function between transgender and transsexual persons.
Crossdresser: a person who is not transgender who dresses for non-sexual enjoyment.
Transvestite: a person who is not transgender who dresses for sexual enjoyment.
Transsexual: a transgender person who has started (or is in-progress, or has completed) transition.
Pre-Op: syn. with transsexual
Post-Op: the only term locally used to refer to someone with SRS
M2F/F2M: not generally used by anyone outside of Facebook, where it means “transsexual”.
T-girl: non-derogatory term for a female transsexual.
G-girl: genetic girl.
I-girl: rarely used, intersex woman. I have been called this a couple of times, however.
Transwoman/transman: non-derogatory term for a female/male transsexual.
Ladyboy: used infrequently as a joke in the community between transsexuals.
Genderqueer: locally, this typically is thought of as “person who is playing games with their gender and not really serious.” Please note the caveat above.
Non-Op: rarely used, a term meaning a transsexual who has started transition but has made a decision, independent of financial reasons, not to have SRS.
There is much friction between the CD/TV community and the TG/TS community in my area. And much friction between pre-op and post-op women.