What does winter squash mean in cooking?

winter squash means: This long-keeping squash has many similarities with sweet potatoes and pumpkin. It is usually yellow or orange in color and can be cooked to make it creamy and sweet. You want a firm, unbroken squash. (in Cooking Dictionary)

What else does winter squash mean?

• Winter squash is harvested in autumn and has an orange-yellow flesh. It should be stored for several months due to its thick, hard shell. This is the main difference between summer squash and winter squash. You can find a variety of flavors, from mildly sweet to bitterly nutty. (in Cooking Dictionary)
• One of the many varieties of squash that can be kept for long time, including butternut squash. (in Merlin Dictionary)