Definition of: itch

(ich) v.i.
1. To feel a peculiar irritation of the skin which inclines one to scratch the part affected.
2. To have a desire or longing; crave.
—noun
1. Any of various usually contagious skin diseases accompanied by itching, as scabies.
2. An itching of the skin.
3. A restless desire or yearning. [OE giccan]
—itch′i·ness noun
—itch′ing noun
—itch′y adjective