S: (n) upper (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"
S: (n) 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)
S: (n) boot (footwear that covers the whole foot and lower leg)
S: (n) amphetamine, pep pill, upper, speed (a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression)
S: (n) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))
S: (n) 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)
S: (n) drug (a substance that is used as a medicine or narcotic)
S: (n) agent (a substance that exerts some force or effect)