A Jack-o'-lantern is a traditional Halloween decoration made from a hollowed-out pumpkin with a carved face. The crossword solutions for the term 'Jack-o'-lantern feature' are GRIN (4 letters), ELISION (7 letters), APOSTROPHE (10 letters), and ANGER (5 letters). These words all refer to features that can be carved into a Jack-o'-lantern, such as a wide GRIN, ELISION of certain letters in the face, an APOSTROPHE in the name, or an angry expression.