millstone
1. [ noun ] any load that is difficult to carry
Related terms: load
2. [ noun ] (figurative) something that hinders or handicaps
Synonyms: albatross
Examples:

"she was an albatross around his neck"

Related terms: hindrance
3. [ noun ] one of a pair of heavy flat disk-shaped stones that are rotated against one another to grind the grain
Related terms: stone gristmill
Similar spelling:   milestone
  Milstein
  Milstead
  milk_tooth