proficient
When someone has become good at something, they are proficient. After all those hours playing video games, you must be very proficient at them.
Proficient comes from the Latin for making progress, so if someone is proficient, they have made so much progress that they've become good at something. Use proficient to talk about improvement through practice instead of natural ability; even a person with no inherent skill at language can become proficient in Latin. If you're proficient at tennis, you're good, but it doesn't imply the kind of mastery for which the expert is used.
Vocabulary lists containing proficient
Because his family is in witness protection, fifteen-year-old Nick Pearson (not his real name) is supposed to remain low-key, but he has trouble doing that when another member of the Stepton High newspaper uncovers some secrets.
In this nonfiction book, Gail Jarrow chronicles the life of James Garfield, detailing Garfield's early life, his rise to become the 20th president of the United States, and the events and aftermath of his assassination.
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