Having a gender identity that is different from one's birth-assigned sex; synonymous with transgender.
Its antonym is homogender, which is synonymous with cisgender.
From the Greek prefix hetero-, meaning "different", and gender. Coined as a complementary word to "homogender", which was coined because some homogender people object to the term "cisgender". It remains to be seen whether these terms will be accepted.
Not every heterogender person knows their gender from birth. As a child, I didn't use to think I was a girl, but I was uncomfortable with looking like a boy and playing with other boys. I felt much more comfortable in the company of girls. It was only in adulthood that I realized what that had meant, and now I'm a proud heterogender woman.
The ability girls and women have developed to hold several items at once in one hand. The skill has been developed due to the lack of pockets in women's clothing.
I thought she'd need multiple trips to carry her phone, keys, wallet, and Starbucks to her car since she needed the other hand to open the door, but she used her impressive girl grip to carry everything in one hand.