IPA: //sɪkˈstiːn//
KK: /sɪkˈstin/
A number that comes after fifteen and before seventeen, often used to indicate age or quantity.
She turned sixteen last week and is excited to drive.
Sixteen originates from Old English 'six-tēne', where 'six' (meaning the number six) is combined with 'tēne' (meaning ten). The word 'sixteen' refers to the number that is six more than ten.
Think of the number six added to ten to remember that sixteen is the result of six plus ten.