Formal Abbreviation:
* Mgr. - This is the most common and formal abbreviation for "managed."
Informal Abbreviation:
* Mgd. - This abbreviation is less formal and often used in casual writing or technical documents.
Other Abbreviation:
* Man. - This is a very informal abbreviation that is not commonly used.
The best abbreviation to use depends on the specific context and audience. In formal writing, it's best to use "Mgr." while informal writing may allow for "Mgd."
For example:
* "The project was managed by a team of experienced professionals." (Formal)
* "The data is mgd. by a central server." (Technical)
It's important to note that there may be other abbreviations used in specific fields or industries. Always consider the context and your audience when choosing an abbreviation.