try out in WordNet English dictionary

1. perform in order to get a role
   "She auditioned for a role on Broadway"
   audition  try out 
   
2. put to the test, as for its quality, or give experimental use to
   "This approach has been tried with good results"; "Test this recipe"
   test  prove  try  try out  examine  essay 
   
3. try something new, as in order to gain experience
   "Students experiment sexually"; "The composer experimented with a new style"
   experiment  try out 
   
4. take a sample of
   "Try these new crackers"; "Sample the regional dishes"
   sample  try  try out  taste 
   

try out in English Wiktionary