"itching" in the noun sense
1. itch, itchiness, itching
an irritating cutaneous sensation that produces a desire to scratch
"itching" in the verb sense
1. rub, scratch, itch
scrape or rub as if to relieve itching
"Don't scratch your insect bites!"
2. itch
have or perceive an itch
"I'm itching
3. itch
cause to perceive an itch
"his skin itched"
4. itch, spoil
have a strong desire or urge to do something
"She is itching to start the project"
"He is spoiling for a fight"
Source: WordNet® (An amazing lexical database of English)
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