The tickle can be divided into two separate categories of sensation, knismesis and gargalesis. Knismesis, also known as a "moving itch", is a mildly annoying sensation caused by a light movement on the skin, such as from a crawling insect.
The meaning of TICKLE is to touch (a body part, a person, etc.) lightly so as to excite the surface nerves and cause uneasiness, laughter, or spasmodic movements.
tick, tickle - Tick, as in "sound of a clock," "mark of correctness," originally meant "light touch, tap," and its modern senses are recent developments; tickle is probably a derivative of this version of tick.
Definition of tickle verb in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
TICKLE definition: to touch or stroke lightly with the fingers, a feather, etc., so as to excite a tingling or itching sensation in; titillate. See examples of tickle used in a sentence.
to stroke lightly with the fingers, with a feather, etc., so as to cause a tingling or itching sensation in:[~ + object] To wake him up she would tickle his nose with a feather.