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1. The state or quality of being precise; exactness.
a. The ability of a measurement to be consistently reproduced.
b. The number of significant digits to which a value has been reliably measured.
1. Used or intended for accurate or exact measurement: a precision tool.
2. Made so as to vary minimally from a set standard: precision components.
3. Of or characterized by accurate action: precision bombing.

[Latin praecīsiō, praecīsiōn-, a cutting off, from praecīsus, past participle of praecīdere, to cut off; see precise.]


1. the quality of being precise; accuracy
2. (Mechanical Engineering) (modifier) characterized by or having a high degree of exactness: precision grinding; a precision instrument.
[C17: from Latin praecīsiō a cutting off; see precise]
preˈcisionism n
preˈcisionist n


(prɪˈsɪʒ ən)

1. the state or quality of being precise.
2. mechanical or scientific exactness: a lens ground with precision.
3. strict observance; punctiliousness.
4. Math. the degree to which the correctness of a quantity is expressed. Compare accuracy (def. 3).
5. of, pertaining to, or characterized by precision: precision instruments.
[1630–40; < Latin]
pre•ci′sion•al, adj.




bang on Exactly on; directly on; precisely as planned; apt or appropriate. This British slang phrase often appears as bang on target, popularized by bomber lingo during World War I.

It [a play] has enough quality and sense of the theatre to suggest that before long he will land one bang on the target. (Oxford Magazine, February 27, 1958)

By extension, the phrase also describes anything which is just right, apt, or appropriate.

As a realistic tale of low life in London, it is bang on. (Spectator, February 14, 1958)

Spot on is another British slang phrase which is used interchangeably with bang on.

dot one’s i’s and cross one’s t’s To be precise or meticulous down to the last or smallest detail; to particularize in detail so as to leave no room for doubt or uncertainty; to cite chapter and verse. This expression is said to have sprung from the possibility of confusing i’s with t’s if they are carelessly written without the respective dot and cross. The phrase has been in figurative use since the 1800s.

hit the nail on the head To do or say the most fitting thing; to cut through extraneous details and come right to the point; to make a clear, pithy statement. This expression has been in print since the 16th century. Hitting a nail properly—that is, squarely on the head —is likened to communicating effectively, or to the point. On the other hand, a bad hit which bends the nail is like rambling which fails to get to the crux of a matter.

At least they ignorantly hit the nail on the head, saying that the Devil was in him. (Fryke’s Voyage, 1700)

Occam’s razor The maxim that unnecessary facts or assumptions used to explain a subject must be eliminated. William of Occam, the 14th-century English scholastic philosopher known as “the Invincible Doctor,” believed that general ideas have no objective reality outside the mind (nominalism). Razor in this expression is a metaphorical term for the precise, dissecting, incisive methods which characterize Occam’s intellectual approach.

on the button Exactly, precisely; punctually, promptly; on the dot; often right on the button. This expression derives from the boxing slang use of button to mean the point of the chin. Literally then, on the button indicates a perfectly aimed punch to the chin or jaw area intended to knock a fighter out or at least seriously impair his ability to retaliate.

on the money At precisely the right time or place, right on target; often right on the money. This American slang expression appears to refer to money placed as a bet against a certain, previously stated outcome.

on the nose Precisely; right on target; on time. On the nose is old radio parlance describing the producer’s gesture of putting his finger on his nose to signify that the program was running according to schedule. The phrase is now used especially in regard to time but can describe anything which is accurate, precise, or apt. On the button is akin to on the nose in meaning and usage, and both are American equivalents of the British phrases bang on and spot on.

to a T Exactly, precisely, perfectly.

All these old-fashioned goings on would suit you to a T. (Harriet Beecher Stowe, Dred, 1856)

The OED dismisses as untenable the popular belief that this expression is an allusion to the T square, a draftsman’s T-shaped ruler for the accurate drawing of right angles, parallel lines, etc. It conjectures instead that it was the initial of a word, perhaps tittle ‘dot, jot,’ since this was in use nearly a century before to a T in exactly the same constructions. Use of the expression dates from at least the late 17th century.

ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.precision - the quality of being reproducible in amount or performanceprecision - the quality of being reproducible in amount or performance; "he handled it with the preciseness of an automaton"; "note the meticulous precision of his measurements"
exactitude, exactness - the quality of being exact; "he demanded exactness in all details"; "a man of great exactitude"
impreciseness, imprecision - the quality of lacking precision


noun exactness, care, accuracy, fidelity, correctness, rigour, nicety, particularity, exactitude, meticulousness, definiteness, dotting the i's and crossing the t's, preciseness The interior is planned with meticulous precision.


دِقَّه، ضَبْط


A. N (gen) → precisión f; [of calculations] → exactitud f
precision-made [product, instrument] → hecho con precisión
B. CPD precision bombing Nbombardeo m de precisión
precision engineering Ningeniería f de precisión
precision instrument Ninstrumento m de precisión


nprécision f
with precision → avec précision
modif [engineering, instrument, weapon] → de précision precision bombingprecision bombing nbombardements mpl de précision


nGenauigkeit f; (of work, movement also)Präzision f


precision bombing
ngezielter Bombenabwurf
precision engineering
nPräzisionstechnik f
precision instrument
nPräzisionsinstrument nt
precision tool
nPräzisionswerkzeug nt
precision work


[prɪˈsɪʒn] nprecisione f


(priˈsais) adjective
1. exact. Give me his precise words; precise instructions; a precise translation.
2. careful to be accurate and exact in manner, speech etc. He is always very precise.
preˈciseness noun
preˈcisely adverb
1. exactly. at midday precisely; Precisely what do you mean?; He spoke very precisely.
2. used to express complete agreement. `So you think we should wait until tomorrow?' `Precisely.'
preˈcision (-ˈsiʒən) noun
exactness; accuracy. He spoke with great precision; (also adjective) precision tools (=tools used for obtaining very accurate results).


n. precisión, exactitud.


n precisión f
References in classic literature ?
He took a book from his pocket and began energetically to read it, judging by the precision and frequency with which he turned the leaves.
From such undeniable testimony did the practised woodsman arrive at the truth, with nearly as much certainty and precision as if he had been a witness of all those events which his ingenuity so easily elucidated.
Besides, when making a passage from one feeding-ground to another, the sperm whales, guided by some infallible instinct -- say, rather, secret intelligence from the Deity --mostly swim in veins, as they are called; continuing their way along a given ocean-line with such undeviating exactitude, that no ship ever sailed her course, by any chart, with one tithe of such marvellous precision.
The three corresponding new sails were now bent and reefed, and a storm-trysail was set further aft; so that the ship soon went through the water with some precision again; and the course --for the present, East-south-east --which he was to steer, if practicable, was once more given to the helmsman.
She holds her skirt with her hand as she dances, with stately precision, after the manner of the grandes dames.
One luckless wight contrived to upset the gravy; and then gravy had to be got up de novo, with due care and formality, Aunt Chloe watching and stirring with dogged precision, answering shortly, to all suggestions of haste, that she "warn't a going to have raw gravy on the table, to help nobody's catchings.
They thought he must surely strike an uncertain place some time; but no, he never had to hesitate, he always knew, and always with unerring precision.
Rebecca sat down carefully, smoothing her dress under her with painstaking precision, and putting her sunshade under its extended folds between the driver and herself.
It was a long, wellwritten letter, giving the particulars of his journey and of his feelings, expressing all the affection, gratitude, and respect which was natural and honourable, and describing every thing exterior and local that could be supposed attractive, with spirit and precision.
Marianne's preserver, as Margaret, with more elegance than precision, styled Willoughby, called at the cottage early the next morning to make his personal enquiries.
He reverted, with his customary precision, to his customary choice of alternatives.
It being then just dinner-time, we went, first into the great kitchen, where every prisoner's dinner was in course of being set out separately (to be handed to him in his cell), with the regularity and precision of clock-work.