plural siennas
1
: an earthy substance containing oxides of iron and usually of manganese that is brownish yellow when raw and orange red or reddish brown when burnt and is used as a pigment
2
or less commonly siena,
plural sienas
: a strong reddish-brown
Examples of sienna in a Sentence
Recent Examples on the Web
On a recent afternoon, fluffy clouds drift past the sun, throwing light, then shadow, across distant cliffs layered in yellow, ochre and sienna.
—
John Burnett,
NPR,
14 Mar. 2026
Topping off her look, the British royal added the vintage coat, which was designed with an ornate pattern and shades of brown and burnt sienna.
—
Julia Teti,
Footwear News,
3 Feb. 2026
Womanly figures in flowy sienna and white robes stand in a vast ornate chamber with a vaguely alien cityscape in the background.
—
WIRED,
20 Jan. 2023
The wall tile delivers a glossy sienna hue while the primary bedroom reads almost salmon in tone.
—
Regina Cole,
BostonGlobe.com,
11 Jan. 2023
Prince was wearing a loose-fitting top in a heathered sienna, with matching pants, a green vest, and a pair of beaded necklaces.
—
Dan Piepenbring,
The New Yorker,
2 Sep. 2019
Think scarlet, peach, pink, amber, sienna, and gold versus cooler teal, eggplant, emerald, aqua, and cobalt.
—
Caroline Picard,
Good Housekeeping,
25 July 2019
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John Burnett,
NPR,
14 Mar. 2026
Topping off her look, the British royal added the vintage coat, which was designed with an ornate pattern and shades of brown and burnt sienna.
—
Julia Teti,
Footwear News,
3 Feb. 2026
Womanly figures in flowy sienna and white robes stand in a vast ornate chamber with a vaguely alien cityscape in the background.
—
WIRED,
20 Jan. 2023
The wall tile delivers a glossy sienna hue while the primary bedroom reads almost salmon in tone.
—
Regina Cole,
BostonGlobe.com,
11 Jan. 2023
Prince was wearing a loose-fitting top in a heathered sienna, with matching pants, a green vest, and a pair of beaded necklaces.
—
Dan Piepenbring,
The New Yorker,
2 Sep. 2019
Think scarlet, peach, pink, amber, sienna, and gold versus cooler teal, eggplant, emerald, aqua, and cobalt.
—
Caroline Picard,
Good Housekeeping,
25 July 2019
Cite this Entry
“Sienna.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sienna. Accessed 6 Jul. 2026.
Copy CitationKids Definition
sienna
noun
si·en·na
sē-ˈen-ə 
: an artist's pigment that is either brownish yellow or reddish brown
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