crenel

He knocked aside the wall of fresh-fallen snow filling up the crenel and leaned out between the merlons.

A bolt passed within a foot of him, shattering the crust of frozen snow that had plugged the closest crenel.

Last year, Congress created the “Commission to Review the Effectiveness of the National Energy Laboratories,” and in Washington it didn’t take long for a new acronym, “CRENEL,” to be born.

On the inside of the rampart and in the wide crenel between two upthrust merlons.

"Blood," he announced, "clumsily mopped up. At a guess, the woman killed Drennan and lowered the drawbridge. Squint heard the clank of chains, came to have a look, and got this far. They pushed the corpse through the crenel into the moat so he wouldn't be found by another sentry."