Definitions
1.NounThe state of being precise or exact; especially, both exact and accurate.
2.NounThe ability of a measurement to be reproduced consistently."The classic example of the difference between precision and accuracy is that in target practice, if the grouping is tight but the group is off-center, your precision is good but your accuracy needs calibration."
3.NounThe number of significant digits to which a value may be measured reliably.
4.NounA bidding system that makes use of many artificial bids to describe a hand quite precisely.
5.AdjectiveUsed for exact or precise measurement."precision instruments"
6.AdjectiveMade, or characterized by accuracy.