16 16 /sɪksˈtin/

adjective

1. () Being one more than fifteen  ( xvi , sixteen , 16 )
   being one more than fifteen
     The sixteen-year-old driver obtained their learner's permit.
   The sixteen-year-old driver obtained their learner's permit.
   

noun

1. () The cardinal number that is the sum of fifteen and one  ( sixteen , XVI , 16 )
   the cardinal number that is the sum of fifteen and one
    She got her first job when she was sixteen years old
   She got her first job when she was sixteen years old