- albatross, millstone - (figurative) something that hinders or handicaps; "she was an albatross around his neck"
--1 is a kind of hindrance, deterrent, impediment, balk, baulk, check, handicap
- millstone - any load that is difficult to carry
--2 is a kind of load, loading, burden
- millstone - one of a pair of heavy flat disk-shaped stones that are rotated against one another to grind the grain
--3 is a kind of stone
--3 is a part of gristmill - millstone - one of a pair of heavy flat disk-shaped stones that are rotated against one another to grind the grain