1. Slender aspen native to North America
   - American aspen, Populus tremuloides

Type of: aspen

• outscore
• outsell
• outset
• outshine
• outshout
• outside
• outside caliper
• outside clinch
• outside door
• outside loop
• outside marriage
• outside mirror
• outsider
• outsider art
• outsize
• outsized
• outskirt
• outskirts
• outsmart
• outsole
• outsource
• outspan
• outspend
• outspoken
• outspokenly