Wiktionary
n. A knife, with a serrated edge, designed to cut bread; sometimes slots into a bread board.
WordNet
n. a knife used to cut bread
Wikipedia
Bread knives are used for cutting bread and are one of many kitchen knives used by chefs. The serrated blades of bread knives are able to cut soft bread without crushing it.
Usage examples of "bread knife".
It had been ripped open down the top with a serrated bread knife, which had been left sticking out of the bread, jagged pieces of plastic wrapping caught on the blade.
Two of the cannibals were swarming over Eric, one grabbing his hair to pull his head back while the other hacked clumsily with a bread knife.
Three of the other girls, Carine, Emmeline, and Annette, were Haken, too, and had never held anything more than a dull bread knife before.
Something about a French recluse who peeped through Venetian blinds and played with a bread knife.
Sister Servant Rejoice was holding a bread knife, turning it and turning it in her hands as she looked at me, something deep and violent in her eyes.
Connie retreated to the kitchen cabinets and her hand went into one of the drawers to haul out the long bread knife.
The serrations resembled those on a bread knife, which then reminded her of the mezzaluna in Susan’.