It can refer to:
* A loudspeaker: This is the most common meaning, referring to the device that amplifies sound.
* A spokesperson: This is less common, but can be used to refer to a person who speaks on behalf of a group or organization.
For example:
* "El altavoz del concierto sonaba increíblemente bien." (The speaker at the concert sounded incredibly good.)
* "El altavoz de la compañía anunció que habrá un nuevo producto." (The company spokesperson announced that there will be a new product.)