see through a millstone

see through a millstone (third-person singular simple present sees through a millstone, present participle seeing through a millstone, simple past saw through a millstone, past participle seen through a millstone)

1. Alternative form of see into a millstone
   • 1896, Margaret Oliphant, The Library Window:

     And then such a clever old lady as Lady Carnbee, who could see through a millstone, people said−and Mr Pitmilly, such an old man of the world.