fingertip

Universal Words noun [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.