Update: Ratty in the comment noted that ⎋ is actually the ESC key button not the power button. Update 2012: Added more symbols. Unicode does define some other characters which are sort of Mac-specific. Character Entity Code Entity Name Description ⌘ ⌘ ⌘ Command Key symbol ⌥ ⌥ ⌥ Option Key symbol ⇧ ⇧ ⇧ Shift Key symbol ⎋ ⎋ ⎋ ESC Key symbol ⇪ ⇪ ͤ