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A person with a high degree of skill in or knowledge of a certain subject.
adj. (ĕk′spûrt, ĭk-spûrt′)
Having, involving, or demonstrating skill in or knowledge of a certain subject. See Synonyms at proficient.

[Middle English, from Old French, experienced, from Latin expertus, past participle of experīrī, to try; see per- in Indo-European roots.]

ex′pert′ly adv.
ex′pert′ness n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.expertness - skillfulness by virtue of possessing special knowledge
skillfulness - the state of being cognitively skillful
professionalism - the expertness characteristic of a professional person
sophistication - being expert or having knowledge of some technical subject; "understanding affine transformations requires considerable mathematical sophistication"


Natural or acquired facility in a specific activity:
Informal: know-how.
sérfræîi; færni, snilli


[ˈekspɜːtnɪs] Npericia f


(ˈekspəːt) adjective
(with at or on) skilled through training or practice. an expert car designer; I'm expert at map-reading; Get expert advice on plumbing.
a person who is an expert. an expert in political history / on ancient pottery.
ˈexpertly adverb
ˈexpertness noun
References in classic literature ?
But while now upon so wide a field thus variously accomplished, and with such liveliness of expertness in him, too; all this would seem to argue some uncommon vivacity of intelligence.
A tolerable expertness in military movements is a business that requires time and practice.
As she knew her own expertness with the needle, this did not surprise her; but she felt some wonder that more and better work should produce the least reward.
The objective of IPL is to enable students to obtain knowledge, expertness and professional attitudes which could not be acquired effectively in any other way.
at 720 (noting that, in a previous case, the Court "called attention to the express intention of Congress to create an agency whose membership would at all limes be experienced, so that its conclusions would be the result of an expertness coming from experience").
The social value required for any idea of ascendancy originates from both an automation process eliminating human propensities and analytical expertness to generate meaning (Mihaila et al.
Secondly, the High Court appears to have interpreted the term in a way that is subtly more favourable to the prosecution than Mann CJ understood the term when he concluded that 'what [Cooper] said he said advisedly I have no doubt whatsoever, for he is a man of considerable expertness and knew what he was talking about'.
need for expertness became dominant; for the art of regulating an
The modern era of Skidmore deference notes factors such as the "degree of the agency's care, its consistency, formality, and relative expertness, and to the persuasiveness of the agency's position.
Ministry of Water and Power will be organized so that its functionality expertness can be strengthened [11].
Indeed, if a language is ready to use an English word because of prestige, conciseness or a desire to put on an appearance of expertness, or in other words, if it is willing to resort to "imported goods," it might also feel inclined to "copy" or "imitate" the English language.
The diplomat likewise mentioned about nation s readiness to partner with Angola in all military expertness, as per the interests depicted by the parties.