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• aspen
  aspen

  noun

  any of various poplars, as Populus tremula, of Europe, and P. tremuloides quaking aspen or P. alba white aspen, of America, having soft wood and alternate ovate leaves that tremble in the slightest breeze.
• Aspen
  Aspen

  noun

  a town in central Colorado: ski resort.

aspen

¹ American  

[as-puhn] / ˈæs pən /

noun

1. any of various poplars, as Populus tremula, of Europe, and P. tremuloides quaking aspen or P. alba white aspen, of America, having soft wood and alternate ovate leaves that tremble in the slightest breeze.

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adjective

1. of or relating to the aspen.

2. trembling or quivering, like the leaves of the aspen.

Aspen ² American  

[as-puhn] / ˈæs pən /

noun

1. a town in central Colorado: ski resort.

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aspen British  

/ ˈæspən /

noun

1. Archaic name: asp. any of several trees of the salicaceous genus Populus, such as P. tremula of Europe, in which the leaves are attached to the stem by long flattened stalks so that they quiver in the wind

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adjective

1. archaic trembling

Etymology

Origin of aspen

1350–1400; Middle English aspen (adj.), Old English æspen; cognate with Old Frisian espen (adj.), espenbeam, Middle Dutch espenboom, Old High German espîn (adj.). See asp ², -en ²

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Example Sentences

See Examples For:

aspen Aspen

The rainforest in West Cowal contains carpets of young slow-growing aspen, a relatively rare tree which can be a rich haven for biodiversity when they reach maturity.

From BBC ● May 21, 2026

In Yellowstone National Park, their return has been praised with reducing the overabundant elk population and allowing decimated trees such as willows and aspen to recover, which subsequently brought the return of beavers and songbirds.

From Los Angeles Times ● May 16, 2026

Yes, stands of aspen and willows are thriving again — in some places.

From New York Times ● Apr. 23, 2024

In many areas, deciduous shrubs and trees, like willow and aspen, are moving in after a fire.

From Science Daily ● Apr. 16, 2024

On either side of them, in the Curandero Valley, aspen trees were a lovely buttery yellow, shivering in the Indian Summer breezes.

From "The Milagro Beanfield War" by John Nichols

Three years ago, they launched their YouTube channel Aspen in the Moment, dedicated exclusively to breaking down the latest discourse in the crafting world.

From Slate ● Oct. 11, 2026

“One of my theories about this is that crafting gives you a lot of time to sit and think,” Aspen, a pattern designer and online creator, tells me.

From Slate ● Oct. 11, 2026

Kurt Ravenschlag, who runs the Roaring Fork Transportation Authority, which is the public transportation provider in Aspen, says Pitkin County is exploring adding shuttle services connecting Colorado airports, such as Eagle and Denver, to Aspen.

From The Wall Street Journal ● Oct. 6, 2026

Alan Fletcher, who ran the Aspen Music Festival and School for over two decades, says much of the angst around the runway makeover centers around the NetJets set.

From The Wall Street Journal ● Oct. 6, 2026

I'm going to Hannah’s birthday party in Aspen on Saturday.

From "From Twinkle, with Love" by Sandhya Menon

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