Having many splinters. / Given to splintering.

(now historical or archaic) A covering for the neck and upper chest, originally worn by both sexes, but later especially by women to cover a low neckline.

(chemistry, in combination) Four caesium atoms or cations in a molecule (Cs₄)

Someone who spanks. / An instrument used to give someone a spanking or spank, such as a paddle. / (nautical) A fore-and-aft gaff-rigged sail on the aft-most mast of a square-rigged vessel.