množina

1. (in grammar) plural
   Kako glasi množina od reči „čovek“? — What's the plural of the word "čovek"?
   Ova imenica se koristi samo u množini. — This noun is only used in the plural.
2. formal multitude; large number
   Na trgu se okupila množina ljudi. — A multitude of people gathered in the square.

For "a large number", everyday speech usually uses mnoštvo.