code: function isAcronym (word) {
  
    return word.length &&
      word.trim().length > 1 &&
      !(onlyNumbers.test(word.replace(/[\.,-\/#!–$%°\^&\*;?:+′|@\[\]{}=\-_`~()]/g,""))) &&
      word.replace(/[\.,-\/#!$%\^&\*;–?:+|@\[\]{}=\-_`~(′°)]/g,"") === word &&
      word.toUpperCase() === word;
  }
docs: Ensure the word has a length of more than 2 letters, does not contain punctation since exterior punctuation has been stripped by this point. If so, then see if the uppercase version of the word is indentical, if so it's very probably an acronym