Multi can mean:

  • Alternate character in online gaming
  • Multi 2 diamonds, a contract bridge convention
  • Multirhyme, a synonym for feminine rhyme used in hip hop music
  • HMX-12 Multi, a character from the visual novel and anime series To Heart

In addition:

  • Multiculturalism is a public policy approach for managing cultural diversity in a multiethnic society
  • Multitude, a term used by some philosophers to refer to the population of the world
  • Multitudes, a French philosophical, political and artistic monthly review.
  • Multiplication, an elementary arithmetic operation.