What is um?

UM could refer to several things depending on the context:

1. University of Miami (UM): A private research university located in Coral Gables, Florida. It is known for its strong programs in marine science, law, and business.

2. Ultimate Marvel (UM): A comic book imprint published by Marvel Comics that features reimagined versions of popular superheroes in the Marvel Universe.

3. Usage Meter (UM): A tool or program used to monitor and track data usage, often used by internet service providers or mobile phone carriers to help customers manage their usage and avoid overages.

4. Unified Messaging (UM): A system or service that integrates different communication tools, such as email, voicemail, and fax, into a single platform for easy access and management.

5. Urdu Medium (UM): A term used in education to refer to schools or courses taught in the Urdu language, primarily in countries where Urdu is an official or widely spoken language.