memo

A short note; a memorandum.

• According to yet another leaked memo, Powell responded the next day. Powell's leaked memo conceded that al Qaeda were not POWs, and that the Taliban individually or as a group might also lose their entitlement to that status.

A record of partial results that can be reused later without recomputation.

• The first is that the recursive call finds its subproblem solution in the memo and returns immediately.

To record something; to make a note of something.informal

To send someone a note about something, for the record.informal

• I made sure to memo him about the client's complaints.