The new film starring Leonardo DiCaprio sent people to the dictionary to look up the title: revenant. The word was the most searched term on Merriam-Webster.com for weeks following the film's release in mid-December of 2015, and spiked again after the 2016 Golden Globe Awards, where the film won three awards including Best Motion Picture. It is our top lookup of 2016 so far.
Revenant means "one that returns after death or a long absence," and comes from the French word that means "to return." It was first used to mean "ghost," "specter," or "wraith," and then developed the meaning "one who returns to a former place after prolonged absence"; both meanings seem to fit the new film, since DiCaprio's character is left for dead (not a spoiler—it's in the trailer) and returns to find his former companions.