What is basically says is that squash and gourds are related - they are in the same family but belong to a different genus within the family and the species is then part of the genus.
Gourds tend to be inedible but the shells can be hardened and used as storage vessels. There are some squash, such as pumpkins, that also be used like this. Other squash (marrows) are less likely to be useful in that way.
"For to be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others." - Nelson Mandela