fingertip

at your fingertips

if you have information at your fingertips, you are able to get it very easily. Every fact and figure he needed was at his fingertips.

be an [artist/patriot/professional/etc.] to your fingertips

if you say that someone is an artist, patriot, professional etc. to their fingertips, you mean that they behave in a way which is completely typical of such a person, and it is the most important part of their character. Mark, a professional to his fingertips, insisted that we should make proper joints, not simply nail the pieces of wood together.

See also: artist, patriot

cling on/hang on by your fingertips

if you are clinging on by your fingertips, you are only just managing to avoid danger or failure. We were clinging on by our fingertips, desperately trying to stop them scoring another goal. (usually in continuous tenses)

See also: cling, hang

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at your fingertips

convenient or easy to find. Every fact and figure he needed was at his fingertips.