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DEV 24 | US Open Replaces Human Referees
Today’s video will teach you five real English words used by native speakers.

5 Vocabulary Words + Timestamps
Umpire [00:16]
Controversial [00:41]
Official [00:42]
Revolution [00:50]
Stakes [00:59]
You learned 5 words from today’s video—Premium members unlock all 25 words from the same video plus the PDF lesson.
Definitions & Example Sentences
1. Umpire
Definition: An official in a sports game who enforces the rules and makes decisions.
Examples:
The umpire called a strike.
The umpire signaled that the ball was out.
The crowd disagreed with the umpire’s decision.
2. Controversial
Definition: Causing disagreement or strong differences of opinion.
Examples:
The film was highly controversial.
He made a controversial comment.
The ruling was considered controversial.
3. Official
Definition: Authorized or recognized by a person in authority.
Examples:
The official results were announced.
English is the official language.
She made an official statement.
4. Revolution
Definition: A major or dramatic change, often political or social.
Examples:
The revolution changed the country’s history.
The Industrial Revolution transformed factories.
Technology sparked a digital revolution.
5. Stakes
Definition: The risks or importance involved in a situation.
Examples:
The stakes were very high.
There is a lot at stake in this decision.
The competition raised the stakes for everyone.
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