Reply To: apostrophe in expression with words Home › Forums › Nemeth Code for Math and Science › apostrophe in expression with words › Reply To: apostrophe in expression with words October 9, 2011 at 7:57 pm #21109 Lindy WaltonModerator No punctuation indicator is used for the apostrophe in "Lila's" because Lila is a word. --Lindy Walton (Committee Member)