Apps: A husband and wife are doing a  crossword puzzle.  Husband: Programs for mobile devices. 4 letters  Wife: Apps  Husband: Adolescent, 4 letters  Wife: Teen  Husband: Contraction meaning failed to perform, 5  letters  Wife: Didn't  Husband: Take a life, 4 letters  Wife: Kill  Husband: Religious songs, 5 letters  Wife: Hymns  Husband: Santa's little helper, 3 letters  Wife: Elf Me_irl