As a Noun: 1. Something that you would rather have given a choice; the choice of something instead of something else; the liking of one thing above another thing or other things. English = preference. 2. Something that you must have in order to do something that you want to do. English = requirement. As a Verb or Adjective: 1. To like one thing more than another thing or other things, and to be more likely to choose the first above the other or all the rest if there is a choice. English = prefer. 2. To want or need something because it is necessary or essential; to feel you must have something or someone. English = require, want badly. 3. To be needed because something is necessary or essential; to be needed very much. English = (be) required, (be) necessary, (be) badly needed.