code: public static boolean isWord(String word) {
  
  		if (isNullOrEmptyTrimmed(word)) {
  			return false;
  		}
  
  		List<String> list = getWords(word);
  		return list.size() == 1;
  	}
docs: Checks if given string is a single word (doesn't accepts words with "-" as a single word!)
  
  @param word to test
  @return true if word, false otherwise