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roach 1 (rōch)
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n. pl. roachor roach·es
1. An edible freshwater cyprinid fish (Rutilus rutilus) of northern Europe.
2. Any of various similar fishes, such as some North American freshwater sunfishes.

[Middle English roche; akin to Medieval Latin rocea (attested in a source from England from around AD 1000) and Anglo-Norman roche and ultimately of unknown origin.]

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
 
roach 2 (rōch)
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n. pl. roach·es
1. A cockroach.
2. Slang The butt of a marijuana cigarette.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
 
roach 3 (rōch)
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n. pl. roach·es
1. A roll of hair brushed up from the forehead or temple.
2. A hairstyle especially among certain Native American peoples in which the head is shaved except for a strip from front to back across the top.
3. Nautical
a. An outward curve in the leech of a fore-and-aft sail.
b. An inward curve in the foot of a square sail.
tr.v. roached, roach·ing, roach·es
1. To brush (hair) in a roach.
2. To shave (the mane of a horse) to a short bristle.

[Originally meaning “inward curve in a square sail,” from ROACH1 and (in reference to the relatively high arch of the fish's back).]

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
 
Roach (rōch), Maxwell Known as "Max." 1924-2007.
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American jazz drummer who defined the role of the drummer in the development of bop.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
 

Indo-European & Semitic Roots Appendices

    Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

    Indo-European Roots

    Semitic Roots

    The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.