NEW YORK (AP) -- What do you call a group selfie? An usie, of course! As in "us." Pronounced uss-ee, rhymes with fussy. "Usies are a growing trend that I think have far more social value than selfies," said Michal Ann Strahilevitz, a professor of marketing at Golden Gate University in San Francisco who studies consumer behavior. "It's magical capturing moments we share with other people." In contrast to one-person selfies, usies are "more about the relationship, and less about you and your hair," she said. The word -- sometimes spelled usie, sometimes ussie -- has been showing up in written material since at least April 2013, according to Ben Zimmer, executive producer of Vocabulary.com and language columnist for The Wall Street Journal.