upper

1. The higher of two berths (synset 104521943)
   is a type of: berth, built in bed, bunk - a bed on a ship or train; usually in tiers
   same as: upper berth
2. Piece of leather or synthetic material that forms the part of a shoe or boot above the sole that encases the foot (synset 104521654)
   "Uppers come in many styles"
   is a type of: piece of leather - a separate part consisting of leather
   subtypes: toe box - the forward tip of the upper of a shoe or boot that provides space and protection for the toes
   has:

   • quarter - piece of leather that comprises the part of a shoe or boot covering the heel and joining the vamp
   • vamp - piece of leather forming the front part of the upper of a shoe
   is a part of:

   • boot - footwear that covers the whole foot and lower leg
   • shoe - footwear shaped to fit the foot (below the ankle) with a flexible upper of leather or plastic and a sole and heel of heavier material
3. A central nervous system stimulant that increases energy and decreases appetite;
   Used to treat narcolepsy and some forms of depression (synset 102707012)
   is a type of:

   • drug of abuse, street drug - a drug that is taken for nonmedicinal reasons (usually for mind-altering effects); drug abuse can lead to physical and mental damage and (with some substances) dependence and addiction
   • excitant, stimulant, stimulant drug - a drug that temporarily quickens some vital process
   subtypes:

   • amphetamine sulfate, amphetamine sulphate - a sulfate derivative of amphetamine that is used as a stimulant for the central nervous system
   • bennie, benzedrine - a form of amphetamine
   • dexedrine, dextroamphetamine sulphate - an isomer of amphetamine (trade name Dexedrine) used as a central nervous system stimulant
   • chalk, chicken feed, crank, deoxyephedrine, glass, ice, meth, methamphetamine, methamphetamine hydrochloride, methedrine, shabu, trash - an amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant
   same as: amphetamine, pep pill, speed

1. The topmost one of two (synset 302449821)
   similar to: top - situated at the top or highest position
2. Higher in place or position (synset 301208990)
   "the upper bunk"; "in the upper center of the picture"; "the upper stories"
   similar to: high - (literal meaning) being at or having a relatively great or specific elevation or upward extension (sometimes used in combinations like `knee-high')
3. Superior in rank or accomplishment (synset 302348166)
   "the upper half of the class"
   similar to: superior - of or characteristic of high rank or importance

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