The term 'GAME OPENER' can be solved by the following crossword solutions: ANTHEM (6 letters), TIC (3 letters), PRE (3 letters), and MAH (3 letters). The first solution, ANTHEM, is a song or hymn of praise or devotion usually to a deity or nation. The second solution, TIC, is a habitual spasmodic contraction of the muscles, most commonly in the face. The third solution, PRE, is a prefix meaning before or in front of. The fourth solution, MAH, is a Chinese game played with tiles. All of these solutions could be used to describe a game opener, as they all involve some kind of activity that could be used to start a game.