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Pronunciation varies by accent · noun
(electricity) A unit of energy equal to the amount of work a horse is capable of delivering during an hour..
Use horsepower-hour when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Horsepower-hour means (electricity) A unit of energy equal to the amount of work a horse is capable of delivering during an hour..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use horsepower-hour where its definition matches the intended context.
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