1. Medium-tall timber tree of the Rocky Mountains having a narrowly conic to columnar crown
   - subalpine fir, Abies lasiocarpa

Type of: silver fir

• alabaster
• alabastrine
• alack
• alacritous
• alacrity
• Aladdin
• Aladdin's lamp
• alalia
• Alamo
• Alan Alexander Milne
• Alan Bartlett Shepard Jr.
• Alan Hodgkin
• Alan Jay Lerner
• Alan Lloyd Hodgkin
• Alan Mathison Turing
• Alan Paton
• Alan Seeger
• Alan Shepard
• Alan Stewart Paton
• Alan Turing
• alanine
• alar
• Alaric
• alarm
• alarm bell