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Definition of rainbow

rainbow

/ˈreɪn.boʊ/
rain · bow

Plural:rainbows
•
Adjective:rainbowlike
•
Past Simple:rainbowed
•
Past Participle:rainbowed
•
Present Participle:rainbowing
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rainbow Lexical Profile

rainbow Game Scores & Validity

• noun

1

An arch of colors visible in the sky, caused by the refraction and dispersion of the sun's light by rain or other water droplets in the atmosphere.

Example

"After the afternoon thunderstorm passed, a brilliant double rainbow appeared across the valley."


2

A wide, varied, or colorful range or display of related things.

Example

"The market stalls offered a dazzling rainbow of fresh tropical fruits and spices."


3

An illusory or idealistic hope, goal, or dream that is difficult or impossible to attain.

Example

"He spent years chasing rainbows instead of focusing on a practical career."


4

A rainbow trout (Oncorhynchus mykiss), a popular game and food fish native to cold-water tributaries of the Pacific Ocean in Asia and North America, characterized by a pink or red stripe along its iridescent side.

Example

"The angler caught a large rainbow in the cold mountain stream."

Synonyms
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Antonyms
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• adjective

1

Having many different bright colors like those of a rainbow; multicolored.

Example

"She wore a vibrant rainbow scarf over her winter coat."


2

Including, representing, or bringing together people of many different races, ethnicities, or backgrounds.

Example

"The mayor was elected with the support of a broad rainbow coalition of voters."

Synonyms
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Antonyms
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• verb

1

To illuminate, decorate, or streak with bright, varied colors like those of a rainbow.

Example

"The thin film of oil on the puddle rainbowed in the morning sunlight."


2

To move, curve, or arch in a high arc resembling a rainbow.

Example

"The basketball rainbowed over the defender's outstretched fingertips and swished through the net."

Synonyms
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Word Origin & Etymology

From Old English 'renboga', a compound of 'regn' (rain) and 'boga' (bow, arch), reflecting a widespread Germanic formation.

Cite this Entry


Wordmom. (2026). Definition of Rainbow. In Wordmom Dictionary. Retrieved Nov 15, 2026, from https://wordmom.com/dictionary/rainbow
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