Definitions

1. noun

a deciduous tree (Populus tremuloides) native to North America with heart-shaped leaves that turn yellow in autumn

“The aspen trees swayed gently in the autumn breeze.”

2. verb

to become or cause to become pale or yellowish, especially due to fear or excitement

“Her face asped when she saw the snake.”

3. verb

to produce or cause to produce a soft rustling or murmuring sound, especially of leaves

“The aspen leaves asped in the wind.”