Wiktionary
n. A knifelike device with a blunt edge, used for slicing letters open.
WordNet
n. dull knife used to cut open the envelopes in which letters are mailed or to slit uncut pages of books [syn: paper knife, paperknife]
Usage examples of "letter opener".
My hand throbbed, where Mab had driven the freaking letter opener through it.
The letter opener lay to one side of it, washed in red to the hilt.
Menard stood shadowed by the door, one hand on the knob, the other pressing a brass letter opener flat to his chest.
She picked up the penknife she used as a letter opener and slit the envelope.
He stepped away from her, took a letter opener, and carefully slit the packing tape that sealed the seams of the small box.
While he waited, he held the silver letter opener in his free hand and tapped the point rapidly against his blotter, not to any time he had in mind, but to the furious tempo of his anger.
Wouldn't it work as well if its edges were as dull as, say, a letter opener?
LuAnn slowly dropped her arm, but she still clutched the letter opener in her hand.
The watchdog joker that Kien normally kept in a jar on his desk was pinned to the desktop with Kien's platinum letter opener, horribly marring the wood's glossy finish.
I took Ginny's battered old letter opener in my free hand, bent it double, and threw it across the room hard.