名词

1. 精确（性）；准确（性）
The accuracy of information or measurements is their quality of being true or correct, even in small details.

2. 准确无误
If someone or something performs a task, for example hitting a target, with accuracy, they do it in an exact way without making a mistake.

1. the quality of being near to the true value

e.g. he was beginning to doubt the accuracy of his compass
the lawyer questioned the truth of my account

Synonym: truth

2. (mathematics) the number of significant figures given in a number

e.g. the atomic clock enabled scientists to measure time with much greater accuracy