memo
n. countable C1 Advanced Oxford US //ˈmɛˌmoʊ// UK //mˈɛməʊ// memo Informal
n. a short written message or note used to share information with people in the same office or company.
n. a brief written message or report, typically used for internal communication within an organization.
The manager sent a memo about the new office hours.
According to the internal memo, all staff members must complete the safety training by the end of the week.
While digital communication has largely replaced paper, the formal memo remains a standard tool for documenting policy changes and ensuring a permanent record of corporate decisions.
Clipping of memorandum.
Usage
Often used with the verbs 'send', 'write', or 'issue'.