For how to install mulvoc into your Emacs system, See Installation.
For the most part, you don't have to do anything to use mulvoc. Simply
entering words in text will trigger mulvoc's features when the minor
mulvoc-mode is active.
When you type a word that mulvoc recognises, translations of the word
will appear. Mulvoc has three ways of displaying the translations:
You can control these individually; See Controlling the display.