rookie

1 ENTRIES FOUND:
rookie /ˈrʊki/ noun
plural rookies
rookie
/ˈrʊki/
noun
plural rookies
Britannica Dictionary definition of ROOKIE
[count] chiefly US
1 
: a first-year player in a professional sport — often used before another noun
2 
: a person who has just started a job or activity and has little experience : beginner — often used before another noun