What is this, a word game?
The sexual act between two persons of the same sex can never produce an offspring and that is why it makes sense to define marriage as the union between one man and one woman. This is not rocket science. This is the way it has been for hundreds and hundreds of years. Science and certain social developments have not changed the fundamental facts of life.
Men and women having sex can produce offspring. To preserve our liberties and our civilization, it is a necessity to regulate that process. Two persons of the same gender having sex cannot produce offspring; therefore we have no need to regulate it.
The sexual act between two infertile people can never produce an offspring, the sexual act between two septugenarians can never reproduce an offspring, yet there are weddings happening over at Century Village every day.
The ability to procreate has never been a test for the issuance of marriage licenses.