[usuallypl.] the end of the finger that is furthest from the hand:
Apply the cream gently using your fingertips.
IDIOMS
have sth at your fingertips to have the information, knowledge, etc. that is needed in a particular situation and be able to find it easily and use it quickly:
I made sure I had all the facts at my fingertips before attending the meeting.
to your fingertips (BrE) in every way:
She's a perfectionist to her fingertips.
