itch

(noun) a contagious skin infection caused by the itch mite; characterized by persistent itching and skin irritation. Synonyms: scabies. Examples: "He has a bad case of the itch."

(noun) a strong restless desire. Synonyms: urge. Examples: "Why this urge to travel?."

(noun) an irritating cutaneous sensation that produces a desire to scratch. Synonyms: itchiness, itching.

(verb) scrape or rub as if to relieve itching. Synonyms: rub, scratch. Examples: "Don't scratch your insect bites!."

(verb) have or perceive an itch. Examples: "I'm itching--the air is so dry!."

(verb) cause to perceive an itch. Examples: "His skin itched."

(verb) have a strong desire or urge to do something. Synonyms: spoil. Examples: "She is itching to start the project." "He is spoiling for a fight."