Definition
nounThe color of sunflower petals and lemons; the color obtained by mixing green and red light, or by subtracting blue from white light; the color evoked by light of wavelength around 580 nm; one of the three primary colors in subtractive color systems.
nounThe middle light in a set of three traffic lights, the lighting of which indicates that drivers should stop short of the intersection if it is safe to do so.
Sentence Examples
There are several flowers. One is red, another is white, and the others are yellow.
Who's the girl in a yellow raincoat?
I got a parking fine for parking on double yellow lines.
Word Origin & History
From Middle English yelwe, yelou, from Old English ġeolwe, oblique form of Old English ġeolu, from Proto-West Germanic *gelu, from Proto-Germanic *gelwaz, from Proto-Indo-European *ǵʰelh₃wós, from *ǵʰelh₃- (“green, yellow”).
Cognate with Scots yella (“yellow”), North Frisian gööl, güül (“yellow”), Saterland Frisian jeel (“yellow”), West Frisian giel (“yellow”), Cimbrian gel, ghéel (“yellow”), Dutch geel (“yellow”), Dutch Low Saxon gael, gel (“yellow”), German gelb, gehl (“yellow”), German Low German gel, geel, gęl, gäl (“yellow”), Luxembourgish giel (“yellow”), Vilamovian gaoł (“yellow”), Yiddish געל (gel), געלב (gelb, “yellow”), Danish, Norwegian Bokmål, Norwegian Nynorsk, and Swedish gul (“yellow”), Faroese and Icelandic gulur (“yellow”). Compare also Welsh gell (“bay, tawny”), Latin helvus (“dull yellow”), Irish geal (“white, bright”), Lithuanian žalias (“green”), Ancient Greek χλωρός (khlōrós, “light green”), Persian زرد (zard, “yellow”), Sanskrit हरि (hari, “greenish-yellow”), Russian жёлтый (žóltyj, “yellow”), Russian зелёный (zeljónyj, “green”).
The verb is from Middle English yelwen, ȝalowen, ȝolewen, from Old English ġeolwian, from the adjective.
Literary Quotations & Historical Citations
"It is the strangest yellow, that wall-paper! It makes me think of all the yellow things I ever saw—not beautiful ones like buttercups, but old foul, bad yellow things."
— 1892, Charlotte Perkins Gilman, The Yellow Wallpaper:
"Red No. 3, red No. 40, blue No. 2 and green No. 3 all have been linked with cancer or tumors in animals. Other sources say red No. 40 and yellow No. 5 and No. 6 contain or may be contaminated with known carcinogens."
— 2025 March 29, Kristen Rogers, “Over half of US states are trying to eliminate food dyes. Here’s what you can do now”, in CNN:
"Andrew Surman fired in what proved to be a 37th-minute winner before Forest's Paul Konchesky saw red late on. That second yellow for the loan signing came in stoppage time and did not affect the outcome of a game which Norwich dominated."
— 2011 April 15, Saj Chowdhury, “Norwich 2 - 1 Nott'm Forest”, in BBC Sport:
"Several other beautiful butterflies rewarded my search in this place [...] The most abundant butterflies were the whites and yellows (Pieridae), several of which I had already found at Lombock and at Coupang, while others were new to me."
— 1869, Alfred Russel Wallace, The Malay Archipelago, volume I, London: Macmillan and Co., page 297:
"A sweaty reaper from his tillage brought / First fruits, the green ear and the yellow sheaf."
— 1667, John Milton, “Book X”, in Paradise Lost. […], London: […] [Samuel Simmons], and are to be sold by Peter Parker […]; [a]nd by Robert Boulter […]; [a]nd Matthias Walker, […], →OCLC; republished as Paradise Lost in Ten Books: […], London: Basil Montagu Pickering […], 1873, →OCLC, line 434: