tickle

nouns

a cutaneous sensation often resulting from light stroking
is a type of (narrower)
a sensation localized on the skin
the act of tickling

verbs

touch (a body part) lightly so as to excite the surface nerves and cause uneasiness, laughter, or spasmodic movements
is derived from
feel sudden intense sensation or emotion
"he was thrilled by the speed and the roar of the engine"
touch or stroke lightly
"The grass tickled her calves"
is derived from
is a type of (narrower)
touch or stroke lightly in a loving or endearing manner
"He caressed her face"; "They fondled in the back seat of the taxi"