General:
* Multilingual: Able to speak multiple languages
* Multifaceted: Having many aspects or sides
* Multiform: Having many forms or shapes
* Multicolored: Having many colors
* Multitude: A large number of people or things
* Multitasking: Performing multiple tasks at the same time
Specific to technology & science:
* Multimedia: Combining different forms of media, like text, audio, and video
* Multiprocessing: Using multiple processors to perform tasks simultaneously
* Multispectral: Involving multiple wavelengths of light
* Multivariate: Involving multiple variables
* Multidimensional: Having multiple dimensions
* Multiplex: To combine multiple signals on a single channel
* Multiplexer: A device that combines multiple signals
Other:
* Multidirectional: Moving or pointing in many directions
* Multigenerational: Involving multiple generations
* Multiethnic: Involving multiple ethnic groups
* Multisensory: Involving multiple senses
* Multipurpose: Serving multiple purposes
* Multidisciplinary: Involving multiple disciplines or areas of study
* Multilevel: Having multiple levels
This is just a small sample, and there are many other words starting with "multi-". The prefix "multi-" is very common and can be used to describe almost anything that has multiple parts, aspects, or features.