at (one's) fingertips
1. Physically within one's reach or in one's hand. I always keep a glass of water at my fingertips when I sleep, because I hate waking up thirsty. I'm not very creative in the kitchen, so I always have a cookbook at my fingertips when I prepare a new dish. Please leave the remote at my fingertips—even just moving a few inches hurts right now.
2. Easily or conveniently accessed, accomplished, or achieved. With our new 24-hour phone service, you have quality customer care at your fingertips. Because the Internet is so easy to access these days, we have every resource imaginable at our fingertips! Living so far from my family, it's nice to always have them at my fingertips via my smartphone.
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