Your memory is your ability to remember things.
A memory is something that you remember from the past.
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.
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.
If you do something from memory, for example speak the words of a poem or play a piece of music, you do it without looking at it, because you know it very well.
If you say that something is, for example, the best, worst, or first thing of its kind in living memory, you are emphasizing that it is the only thing of that kind that people can remember.
If you lose your memory, you forget things that you used to know.
8. to commit something to memory -> see commit