- a knife used in eating the main course of a meal.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for dinner knife
He had a dinner-knife in his hand, and, as I saw he was dangerous, I tried to keep the table between us.Dracula
The young man, tilting back in his chair, rapped on the table with the handle of his dinner-knife.The Burning Spear
The blades are themselves seven inches of this length, and are flat, like the blade of a dinner-knife brought to a point.The Rifle and The Hound in Ceylon
Samuel White Baker