This word is acceptable for play in the UK dictionary that is being used in the following games:

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a. & n. from sile to strain.

n. An instrument for throwing stones or bullets, consisting of a strap and two strings attached to it.

n. A kind of hanging loop in which something, as a wounded limb, is supported: as, to have one's arm in a sling.

n. A device for grasping and holding heavy articles, as casks, bales, etc., while being raised or lowered.

n. A thong or strap, attached to a hand-firearm of any sort, to allow of its being carried over the shoulder or across the back: and usually adjustable with buckles or slides. See gunsling, 2.

n. The chain or rope that suspends a yard or graff.

n. A piece of artillery in use in the sixteenth century.

n. A sweep or swing; a stroke as if of a missile cast from a sling.

n. In a millstone, a swinging motion from side to side.

n. In dynamics, a contrivance consisting of one pendulum hung to the end of another.

"U.S. troops call it they siling (ph) injury in Iraq and body armor cannot protect them from it."

cheerful   

unsmiling   

grinning    smirking   

smile   

beguiling    compiling    dialing    filing    piling    styling    unsmiling    wiling