Akademik

knife rest
noun
1. : cheval-de-frise
2. : a support on which a carving knife may be rested on the dining table when not in use

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1. something upon which to rest a knife when it is not being used.
2. Mil. a metal or wood frame strung with barbed wire for use as a movable road barrier or underwater beach obstacle.
[1855-60]

Useful english dictionary. 2012.