a horse of another


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horse of another color

A person or thing completely different or unique, especially in comparison to someone or something else. I've always found math to be pretty easy, but calculus is proving to be a horse of another color. Most politicians would have resigned after a scandal like that, but this senator is a horse of another color.
See also: another, color, horse, of
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

a horse of another

/a different color
Another matter entirely; something else.
See also: another, horse, of
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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