Definitions

rainbow

[reyn-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

Excursions with Vail Valley Anglers, booked through the hotel, offer a chance to cast for brown and rainbow trout.

From The Wall Street Journal ● Jul. 8, 2026

As he got older it was creating a rainbow effect across our living room floor with the dozens he'd built in his collection.

From BBC ● Jul. 6, 2026

When the match started, a handful of rainbow flags were sprinkled throughout the crowd in the Seattle Stadium -- but there was little other sign of the Pride event happening outside its walls.

From Barron's ● Jun. 27, 2026

Fish species affected included largemouth bass, black crappie, bluegill, channel catfish, flathead catfish, and stocked species such as brown trout and rainbow trout.

From Science Daily ● Jun. 18, 2026

A glowing rainbow began to float in the air like ribbons from the tip of the arrowhead.

From "Healer of the Water Monster" by Brian Young

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

From MarketWatch ● Jul. 13, 2026

Sunny spells and showers with rainbows can often be a feature of the weather in spring.

From BBC ● Mar. 1, 2026

Soon his parents and older sister arrive from the air, trailing rainbows behind their colorful capes.

From Los Angeles Times ● Jan. 23, 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

They marveled at the rainbows that curved up from the waterfall.

From "The Wild Robot" by Peter Brown

Vocabulary lists containing rainbow

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