English Reference
noun · adjective · verb

rainbow

n. · adj. · v.
US /ˈɹeɪnˌboʊ/ UK /ɹˈeɪnbəʊ/ rain·bow UK spelling Rainbows

  1. 01 A1 Beginner Science

    n.a colourful arch that appears in the sky when the sun shines through rain.

    n.a multicoloured arc produced by the prismatic refraction and reflection of light within water droplets in the atmosphere.

    Simple

    The children ran outside to see the beautiful rainbow after the storm passed.

    In context

    A double rainbow appeared over the valley, its secondary arc showing the colours in reverse order due to the double reflection of light within the raindrops.

  2. 02 B2 Upper Intermediate

    n.a large and varied group of different things or people.

    n.a diverse assortment or varied multitude of items, ideas, or people.

    Simple

    The shop sells a rainbow of different fabrics for sewing projects.

    In context

    The festival offered a rainbow of cultural experiences, ranging from traditional folk dances to modern electronic music performances.

  3. 03 A2 Elementary

    adj.having many different colours, especially in the order of a rainbow.

    adj.displaying a wide range of colours; often used to describe items that use the LGBT pride flag colours.

    Simple

    She wore a bright rainbow scarf that matched her cheerful personality.

    In context

    The city was decorated with rainbow banners to celebrate the annual pride parade and support the local community.

  4. 04 B2 Upper Intermediate American English

    adj.made up of people from many different races or backgrounds.

    adj.composed of several different races, ethnicities, or cultural factions; often used in political contexts.

    Simple

    The politician spoke about his vision for a rainbow coalition of voters.

    In context

    The university prides itself on its rainbow student body, which represents over fifty different countries and hundreds of unique cultural traditions.

  5. 05 C2 Proficiency Literary

    v.to make something look bright or colourful like a rainbow.

    v.to pattern or brighten a surface with the colours of the spectrum.

    Simple

    The setting sun began to rainbow the clouds with pink and gold.

    In context

    The oil spill on the wet pavement started to rainbow the surface, creating a shimmering but toxic film of iridescent colours.

  6. 06 C1 Advanced TechnicalSlang

    n.in card games like poker, a set of cards where every card is a different suit.

    n.in Texas hold 'em or Omaha, a flop or hand consisting entirely of different suits, making a 'flush' impossible.

    Simple

    The flop was a rainbow, so I knew nobody had a flush yet.

    In context

    With a rainbow flop of uncoordinated cards, the players were forced to rely on high pairs rather than chasing potential flushes.


From Middle English reynbowe, raynbowe, from Old English reġnboga (“rainbow”), from Proto-West Germanic regnabogō, from Proto-Germanic regnabugô (“rainbow”), equivalent to rain + bow (“arch”). Cognate with West Frisian reinbôge (“rainbow”), Dutch regenboog (“rainbow”), German Regenbogen (“rainbow”), Danish regnbue (“rainbow”), Swedish regnbåge (“rainbow”), Icelandic regnbogi (“rainbow”).

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

This entry
Origin gem-pro *regnabugô
Level A1 · Beginner
Frequency Common
Updated