itch

a contagious skin infection caused by the itch mite; characterized by persistent itching and skin irritation; "he has a bad case of the itch"

a strong restless desire; "why this urge to travel?"

an irritating cutaneous sensation that produces a desire to scratch

scrape or rub as if to relieve itching; "Don't scratch your insect bites!"

have or perceive an itch; "I'm itching--the air is so dry!"

cause to perceive an itch; "his skin itched"

have a strong desire or urge to do something; "She is itching to start the project"; "He is spoiling for a fight"