Definitions

rainbow

[rayn-boh] / ˈreɪnˌboʊ /

NOUN

color spectrum

Synonyms

STRONG

arc bow crescent curve prism variegation

WEAK

band of color

Frequently Asked Questions

What is another name for rainbow?

Literally speaking, a rainbow is an arc (bow) of colors that appears in the sky due to rays of sunshine being reflected and refracted by raindrops (or other water droplets). The word rainbow is also commonly used to refer to any artistic representations of this. Technically speaking, a rainbow can be classified as a primary rainbow or a secondary rainbow. Together, they can form a double rainbow. Triple rainbows are very rare. Rainbow is also commonly used as an adjective that means containing all or many colors of the spectrum (the main ones being red, orange, yellow, green, blue, indigo, and violet—aka roygbiv). Synonyms of this sense include multicolored (or multicolor), kaleidoscopic, and prismatic. Kaleidoscopic suggests something full of bright colors in a way that’s reminiscent of the images seen when looking through a kaleidoscope. Prismatic is a reference to the rainbow-colored when light shines through a prism. Extended from this is a more general sense of rainbow that’s applied to anything featuring a diverse collection of people or things, as in rainbow coalition. Rainbows and rainbow flags are popularly used as symbols of the LGBTQ+ community.

What is another way to say sunshine and rainbows?

Sunshine and rainbows is an idiom used to refer a situation that’s completely positive in all aspects. The phrase is most often used in negative constructions to imply that such situations are rare or impossible (and that it’s naive to think that they’re not), as in Marriage is not all sunshine and rainbows. Phrases used to mean the same thing often use some of the same terms in varying combinations: sunshine and lollipops, unicorns and rainbows, sunshine and puppies. The phrase peaches and cream can mean the same thing, but it’s more often used in positive constructions. The phrase sweetness and light is somewhat similar, but it’s usually applied to people, as opposed to situations. Singles words that can mean the same thing are rosy and rose-colored.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

rainbow rainbows

They analyzed stellar spectra, which are produced by separating light into its component wavelengths, much as a prism divides sunlight into the colors of a rainbow.

From Science Daily ● Oct. 19, 2026

"I see everything through rainbow eyes," he once told ABC.

From Barron's ● Sep. 17, 2026

I bedazzle pieces I collect and I like how it reflects the color and turns into a rainbow.

From Los Angeles Times ● Sep. 11, 2026

The signature JonnyPop is a rainbow stack of cherry, orange, lemon, lime, blue raspberry and grape.

From The Wall Street Journal ● Sep. 5, 2026

Nathan looked up and saw a butterfly with rainbow wings fluttering.

From "Healer of the Water Monster" by Brian Young

“There are storm clouds on the ground, but rainbows and sunshine in the air,” said Mark Coleman, chief commercial officer at Intervine, which helps wineries get their bottles on airlines like Delta and United.

From The Wall Street Journal ● Aug. 7, 2026

“This situation is clearly not all sunshine and rainbows, it’s cold and foggy.”

From MarketWatch ● Jul. 13, 2026

If the fish remain in freshwater, they’ll be considered rainbows.

From Los Angeles Times ● Jun. 9, 2026

"This is not going to be the festival of rainbows and kisses as it was in the past," he told AFP.

From Barron's ● Dec. 17, 2025

In our world, I rank music somewhere between hair ribbons and rainbows in terms of usefulness.

From "The Hunger Games" by Suzanne Collins

Vocabulary lists containing rainbow

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