Definitions of memory:

• noun:   an electronic memory device

  Example: "A memory and the CPU form the central part of a computer to which peripherals are attached"

• noun:   the power of retaining and recalling past experience

  Example: "He had a good memory when he was younger"

• noun:   the cognitive processes whereby past experience is remembered

  Example: "He can do it from memory"

• noun:   something that is remembered

  Example: "Search as he would, the memory was lost"

• noun:   the area of cognitive psychology that studies memory processes

  Example: "He taught a graduate course on learning and memory"

• name:  A surname (very rare: popularity rank in the U.S.: #37375)