The quality or state of being sick or diseased; illness. / Nausea; qualmishness; as, sickness of stomach.

Of a garment, etc, having its inner or hidden side on the outside and vice versa. / (figuratively) Reversed, changed diametrically, by analogy with a garment that is wrong side out.

A pagan female oracle or prophetess, especially the Cumaean sibyl.

(transitive) To choose to take the same point of view as (someone).

Facial hair reaching from the top of the head down the side of the face to the side of the chin.

(pathology, Britain) A severe hereditary form of anaemia, mainly affecting people of African origin, in which mutated haemoglobin distorts red blood cells into a crescent shape, causing the cells to become stuck in capillaries. Downstream tissues are thus deprived of oxygen causing ischaemia and infarction.

A depiction of a sickle crossed with a hammer, used as a symbol of communism and the Soviet Union. / (metonymically) Socialism or communism itself.

(agriculture) An implement having a semicircular blade and short handle, used for cutting long grass and cereal crops. / Any of the sickle-shaped middle feathers of the domestic cock.

(agriculture, transitive) To cut with a sickle. / (transitive) To deform (as with a red blood cell) into an abnormal crescent shape.

Shaped like the blade of a sickle; crescent-shaped.