verb

1. To touch repeatedly or stroke delicately in a manner which causes laughter, pleasure and twitching.

   “He tickled Nancy's tummy, and she started to giggle.”

2. To unexpectedly touch or stroke delicately in a manner which causes displeasure or withdrawal.

   “A stranger tickled Nancy's tummy, causing her to scream in fear.”

3. (of a body part) To feel as if the body part in question is being tickled.

   “My nose tickles, and I'm going to sneeze!”

Synonyms: kittle

noun

1. A sensation that tickles.

   “ticklings and muscular aches”

adjective

1. That tickles

   “a tickling sensation”