Definition of "tickle" []

• To touch (the body) lightly so as to cause laughter or twitching movements. (verb-transitive)
• To tease or excite pleasurably; titillate: suspense that tickles the reader's curiosity. (verb-transitive)
• To fill with mirth or pleasure; delight. See Synonyms at please. (verb-transitive)
• To feel or cause a tingling sensation. (verb-intransitive)
• The act of tickling. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The word "tickle" comes from the Middle English tickelen, which it's believed came from ticken, to touch lightly."
• "This defense of evidential decision theory is called the tickle defense because it assumes that an introspected condition screens off the correlation between choice and prediction."
• "Check below and see if any of the week's new titles tickle your fancy."