The phrase "a mastery over" is correct and usable in written English.
It can be used to describe a high level of skill or control in a particular area or subject.
Example: "Her years of practice have led to a mastery over the complexities of classical music composition."
Alternatives: "a command of" or "an expertise in".
"They're going for a mastery of technique, then a mastery over all the important details of service," Freeman said.
Over the years, she has acquired a mastery over the intricacies of Indian politics that even her opponents grudgingly admire.
The research is ingenious and promising, but it also suggests a mastery over nature that may be hard to achieve.
The brothers, who co-direct their films, which include "Blood Simple," "The Big Lebowski" and "Fargo," said that they wanted an actual teenager to play Mattie and that despite having only minor credits on her résumé, Ms. Steinfeld immediately demonstrated a mastery over the rococo dialogue.
Scientific and technical rationalization has greatly improved both the human capacity for a mastery over nature and institutionalized discipline via bureaucratic administration, legal formalism, and industrial capitalism.
Still, we should recognize from how easily and effortlessly comedians and actors give their lines that they must have a mastery over their craft before they can show off their stuff.
Instead, the two desires intertwine somewhere deep within the modern psyche, because both spring from the same quest — for a perfect mastery over death, which aims for immortality but then eventually settles for the ability to choose the exact timing of our final exit.
Unfortunately, his taunting nonchalance betrayed him as he sought to exert a hypnotic mastery over the pain-riddled beast.
We are, often, owners of a latent mastery over our medical destinies that we simply fail to exercise.
A child who learns to program "both acquires a sense of mastery over a piece of the most modern and powerful technology and establishes an intimate contact with some of the deepest ideas from science, from mathematics, and from the art of intellectual model building," Papert wrote in his book, "Mindstorms," which was published in 1980.
Helicopters, with their ability to move slow or fast, to circle, and to hover, enabling a viewer to scrutinize a landscape from the top or from any angle, give him a feeling of mastery over a scene, for it seems to him that he has examined it thoroughly, almost scientifically.At Gosney Compound, I met Major Wade Hampton, who was a member of Colonel Walker's staff and worked full time at the camp.
