As a Noun: 1. An unpleasant feeling on your skin that makes you want to move your fingernails across it. English = itch. 2. The act of moving your fingernails across an itchy spot on your skin. English = scratch. 3. An itchy area of red spots that appear on your skin when you are ill or have an allergy. English = rash. As a Verb or Adjective: 1. To have an unpleasant feeling on your skin that makes you want to move your fingernails across it. English = (be) itchy. 2. To move your fingernails backwards and forwards across a spot on your skin. English = itch, scratch.