Definition of Upper

Noun

• a central nervous system stimulant that increases energy and decreases appetite
  used to treat narcolepsy and some forms of depression
  amphetamine - pep pill speed
• piece of leather or synthetic material that forms the part of a shoe or boot above the sole that encases the foot
  "Uppers come in many styles"
  
• the higher of two berths
  - upper berth

Adjective

• superior in rank or accomplishment
  "the upper half of the class"
  
• higher in place or position
  "the upper bunk"
  "in the upper center of the picture"
  "the upper stories"
  
• the topmost one of two
  

• Scrabble® score of the upper (9)
• Word Chums® score of the upper (12)
• Words With Friends® score of the upper (12)