English Reference

Word

red

US/ˈɹɛd/

UK/ɹˈɛd/

Definitions

01the color

A1 · Beginner Uncountable noun

n. the color of things like blood, fire engines, or strawberries.

n. the color evoked by the longest visible wavelengths of light, typically between 625 and 740 nanometers.

“The bright red of the roses looked beautiful against the green grass.”

“The artist used a deep, saturated red to draw the viewer's eye toward the central figure in the composition.”

02politics

B2 · Upper Intermediate Countable noun Politics Informal

n. a person who supports communism or very left-wing political ideas.

n. a person who holds revolutionary socialist or communist views; often capitalized when referring to historical movements.

“During the revolution, he was known as a committed red.”

“The political tensions of the era led to a widespread fear of reds infiltrating the government bureaucracy.”

03wine

A2 · Elementary Countable noun

n. a glass or bottle of red wine.

n. a variety of wine made from dark-colored grape varieties, typically served at room temperature.

“Would you like a glass of red with your steak?”

“The sommelier recommended a full-bodied red to complement the rich flavors of the venison.”

Synonyms

Antonyms

04color of an object

A1 · Beginner

adj. having the color of blood or fire.

adj. possessing a hue that resembles the color of blood or the lower end of the visible spectrum.

“She wore a red dress to the party so she would stand out.”

“The red warning light began to flash, indicating that the engine was rapidly overheating.”

Synonyms

05hair color

A2 · Elementary

adj. having hair that is orange, ginger, or reddish-brown.

adj. describing hair that has a natural orange-brown or copper-toned pigment.

“He has bright red hair and lots of freckles on his face.”

“The genetic trait for red hair is relatively rare in the global population, though more common in certain northern European regions.”

Synonyms

gingerauburntitian

06flushed face

B1 · Intermediate

adj. having a face that looks pink or dark because you are embarrassed, angry, or hot.

adj. exhibiting a flushed or rubicund complexion due to physiological factors such as vasodilation or emotional stress.

“His face turned red when he realized he had made a mistake.”

“After the intense workout, her face remained red for nearly an hour as her body temperature gradually returned to normal.”

Synonyms

Antonyms

07US politics

B2 · Upper Intermediate Politics American English

adj. related to the Republican Party in the United States.

adj. denoting a state or region in the United States that predominantly votes for the Republican Party.

“Texas is traditionally considered a red state in presidential elections.”

“Political analysts spent the evening discussing whether the traditionally red district might flip to the opposition.”

Antonyms

08safety stop

C1 · Advanced Informal

interj. a word used to tell someone to stop what they are doing immediately, often for safety.

interj. a signal used to demand an immediate cessation of activity, particularly in high-risk or consensual contexts.

“We agreed to say 'red' if the game became too rough.”

“The participants established a 'red' safe word to ensure that the exercise could be terminated instantly if anyone felt uncomfortable.”

Synonyms

Antonyms

Etymology

From Middle English red, from Old English rēad, from Proto-West Germanic raud, from Proto-Germanic raudaz from Proto-Indo-European h₁rowdʰós, from the root h₁rewdʰ-. Cognates See also West Frisian read, Low German root, rood, rot, rod, Dutch rood, German rot, Danish and Norwegian Bokmål rød, Norwegian Nynorsk raud; also Welsh rhudd, Latin ruber, rufus, Tocharian A rtär, Tocharian B ratre, Ancient Greek ἐρυθρός (eruthrós), Albanian pruth (“redhead”), Russian ру́дый (rúdyj) ("red", "redhaired"). Czech rudý, Lithuanian raúdas, Finnish rauta, Estonian raud, Serbo-Croatian riđ ("reddish", "red"), Avestan 𐬭𐬀𐬊𐬌𐬛𐬌𐬙𐬀 (raoidita), Sanskrit रुधिर (rudhirá, “red, bloody”).

From the archaic verb rede.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

ADJECTIVE

Related words

Idioms

Domains

AstronomyPolitics

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.A1 MoversIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.2.0–3.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 1.0–1.50–23TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.120–224
Frequency
Very common
Level
A1 · BeginnerOxford
Updated

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