roach

1 of 4

noun (1)

plural roach also roaches
Synonyms of roachnext
1
: a silver-green European freshwater cyprinid fish (Rutilus rutilus)
also : any of various related fishes (such as some shiners)
2
: any of several American freshwater sunfishes (family Centrarchidae)

roach

2 of 4

noun (2)

1
: a curved cut in the edge of a sail to prevent chafing or to secure a better fit
2
: a roll of hair brushed straight back from the forehead or side of the head

roach

3 of 4

verb

roached; roaching; roaches

transitive verb

1
: to cut so that the remainder stands upright
roach a horse's mane
2
: to cause to arch
specifically : to brush (the hair) in a roach
often used with up

roach

4 of 4

noun (3)

1
2
: the butt of a marijuana cigarette

Examples of roach in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
One small live roach was found in the restaurant. Shambhavi Rimal, Fort Worth Star-Telegram, 19 Apr. 2026 Most of the roaches were found around a water heater and near a dairy cooler. Camila Pedrosa, Sacbee.com, 17 Apr. 2026 Behind kitchen equipment, the inspector estimated 40 to 50 roach corpses. David J. Neal, Miami Herald, 17 Apr. 2026 Some types of roaches even build up a tolerance to pesticides, making elimination more challenging. Karen Brewer Grossman, Southern Living, 14 Apr. 2026 See All Example Sentences for roach

Word History

Etymology

Noun (1)

Middle English roche, from Anglo-French roche, rosse

Noun (2)

origin unknown

Noun (3)

by shortening

First Known Use

Noun (1)

13th century, in the meaning defined at sense 1

Noun (2)

1794, in the meaning defined at sense 1

Verb

1803, in the meaning defined at sense 1

Noun (3)

1822, in the meaning defined at sense 1

Time Traveler
The first known use of roach was in the 13th century

Browse Nearby Words

Cite this Entry

“Roach.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/roach. Accessed 21 Apr. 2026.

Kids Definition

roach

1 of 2 noun
plural roach also roaches
: any of various fishes including some sunfishes and shiners

roach

2 of 2 noun

Medical Definition

roach

noun

More from Merriam-Webster on roach

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster