What does HEAVY mean?

adjective

1. of comparatively great physical weight or density“a heavy load”
2. unusually great in degree or quantity or number“heavy taxes”
3. of the military or industry; using (or being) the heaviest and most powerful armaments or weapons or equipment“heavy artillery”
4. marked by great psychological weight; weighted down especially with sadness or troubles or weariness“a heavy heart”
5. usually describes a large person who is fat but has a large frame to carry it
6. (used of soil) compact and fine-grained“the clayey soil was heavy and easily saturated”
7. darkened by clouds“a heavy sky”
8. of great intensity or power or force“a heavy blow”