What is Trisquel?

In the spanish forum I've read a post of a user named trinux

https://trisquel.info/en/forum/petici%C3%B3n-para-cambiar-definici%C3%B3n-de-trisquel-en-la-portada

For those of you who don't understand spanish:

trinux basically points out the definition of trisquel on the main page https://trisquel.info/en which states:

"Trisquel GNU/Linux is a fully free operating system for home users, small enterprises and educational centers"

and he continues by saying that it would be more correct to define it as:

"Trisquel is a fully free distribution of the GNU/Linux OS for home...."

The reason being, and I have to agree with trinux, that trisquel is not an independent OS, but just like parabola, ubuntu, debian etc etc, it is a distribution of one same OS, that is GNU/Linux

cheers