A collapsed star is commonly referred to as a neutron star or a black hole, depending on the mass of the original star.
When a massive star exhausts its nuclear fuel, it can no longer support itself against gravitational collapse. If the star has a mass between about 1.4 and 3 times that of the Sun, it can form a neutron star. In a neutron star, the gravitational forces are so intense that electrons and protons combine to form neutrons, resulting in an incredibly dense object where a sugar-cube-sized amount of material would weigh millions of tons.
If the original star’s mass is greater than approximately three solar masses, it collapses into a black hole, a region of space where the gravitational pull is so strong that nothing, not even light, can escape from it. This is the ultimate endpoint for the most massive stars in the universe.
So, the answer to the question depends on the conditions and properties of the star at the time of its collapse.