Millstone
Millstone (noun) means a large, heavy circular stone used, often in a pair, to grind grain into flour. Example: “The old mill still has its original millstone on display.”
How to use Millstone
Learner’s notesIn plain EnglishEither the literal grinding stone in a mill, or, figuratively, a heavy problem that drags someone down.
Fill the gap
Can you complete this real example?
The old mill still has its original _____ on display.
Etymology
A compound of mill and stone, describing the stone wheel used for grinding.