I was going to post this on your other thread about women"s rights, OP, but it seems like it might belong equally as well here!
For the purposes of UK law and our rights under the Equality Act 2010, a woman is a female of any age. A man is a male of any age.
There has been linguistic creep over the last decade which is accelerating.
It goes something like this:
Transsexual, transvestite —> transgender —> trans
Gender identity disorder —>
gender dysphoria —> gender incongruence
transwoman —> trans woman —> womxn —> woman
AMAB —> MTF —> F —> female
So someone who once referred to themselves as a 'transsexual male' in 1999 might now call themselves a 'female / woman' (with a trans history that need not be declared as we see from the MoJ JR - and who might or might not experience gender incongruence)
Meanwhile, someone who in 1999 called themselves a 'female / woman' on the sole basis of their female reproductive system is now, 20 odd years later, being told that they are to identify as a 'cisgender woman', even if they don't feel they have a gender identity, in order to distinguish themselves from the rebranded 1999 transsexual male.
So, effectively, 'woman' and even very recently 'female' have, in your linguistic usage, become gender terms whereas I, like many here, and in line with UK law, will continue to use them as sex-based terms.
Women are resisting giving up the words they use to describe themselves - woman and female are categories, like chair or bed or book, which are already taken in culture and throughout time in this case to describe the sex class of all our mothers and half of the world's population.
And this is also the reason why appropriated language should not lead to appropriated rights.