There are multiple definitions - click on the translation that matches your context.

Aktenvermerk

Substantiv

full

memorandum

noun

Comparative law notes

Switzerland

In the case of an "Aktenvermerk", the more precise translation would be "Memo to File".

Definitions of memorandum

English

a short note or document written by a lawyer and outlining the law as it relates to a particular case

My lawyer will be writing a memorandum of law regarding jurisdiction related to my case.

English

a short note written as a reminder about something that has to be done or acted on in the future (also: memo)

Can you put it down in a memo for me? I'll take a look at it when I get back tomorrow.

English

an informal message sent by one employee of a company or institution to other employees of the same institution concerning a particular aspect of that institution's business, often a message that outlines a particular policy or position on something

A leaked memo written by a top US official questions the ability of the government to control violence.