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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.
Synonyms

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.


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.


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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. archaic trembling

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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

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:

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

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

From Science Daily Apr. 16, 2024

When she reached the tree line, she stopped and turned to look back at her silent audience for a moment, then disappeared into an aspen grove, its branches barren.

From Seattle Times Dec. 18, 2023

Gram is buried in the aspen grove where she and Gramps were married.

From "Walk Two Moons" by Sharon Creech

The park's previous grey wolves, which had arrived together in 2010, faced a number of age-related health issues, with Cedar, Idaho and Rocky dying first, leaving just Chaser and Aspen.

From BBC Jul. 20, 2026

“Most Americans just don’t have what they need to thrive,” said Steven Brown, director of insights and evidence for the Aspen Institute Financial Security Program and an author of the report.

From MarketWatch Jul. 17, 2026

“The luxury traveler is absolutely resilient,” said Jeff Toscano, chief executive of Aspen Hospitality, a division of Aspen One.

From The Wall Street Journal Jul. 7, 2026

During the nature walk, we ambled down a tangle of dirt trails as Fadel pointed out wild rose bushes, Aspen trees and elderberry, giving a recipe for syrup.

From Los Angeles Times Jun. 30, 2026

It was a shot of Sherie Williams at the Aspen cabin, talking about how she’d been failing a bunch of classes.

From "From Twinkle, with Love" by Sandhya Menon

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