Real Dictionary

memory
a series of actions that produce a change or development [...]
If you talk about the memory of someone who has died, especially someone who was loved or respected, you are referring to the thoughts, actions, and ceremonies by which they are remembered.
something to be borne or conveyed; weight [...]
the ability of the mind to store and recall past sensations, thoughts, knowledge, etc [...]
the act or process of retrieving [...]
the act, process, or art of performing [...]
Your memory is your ability to remember things.
countable noun: A computer's memory is the part of the computer where information is stored, especially for a short time before it is transferred to disks or magnetic tapes.
countable noun: A memory is something that you remember from the past.