whetstone

Cordelia’s signature quirk keeps the tone featherlight while doubling as a whetstone; she constantly reminds us that training our focus on the tiniest details about elusive creatures unlocks puzzles.

Whatever knife you choose, buy a honing rod, sharpening steel or whetstone.

Meyers' "Late Show" is an extension of his experience hosting "Weekend Update," but it's fair to say that its harder edge was sharpened on the "Daily Show" whetstone.

Over the past two million years huge sheets of ice ground the landscape of central Illinois to a whetstone flatness.

Activities that demand focus and industry are the whetstone to keeping cognition sharp, Merrill says.