1. the ends or tips of the fingers
Usage: plural form of fingertip
2. immediate reach or access
Usage: used in phrases like ‘at one’s fingertips’

Examples

• She touched the surface gently with her fingertips.
• The pianist’s fingertips moved gracefully across the keys.
• He had all the information at his fingertips.
• The detective examined the evidence with his fingertips.
• She keeps important phone numbers at her fingertips.
• The cold made her fingertips numb.
• With the internet, we have vast knowledge at our fingertips.