As nouns the difference between tickles and tickle
is that
tickles is while
tickle is the act of tickling.
As verbs the difference between tickles and tickle
is that
tickles is present tense of while
tickle is to touch repeatedly or stroke delicately in a manner which causes the recipient to feel a usually pleasant sensation of tingling or titillation.
As an adjective tickle is
changeable, capricious; insecure.