From Longman Dictionary of Contemporary Englishsixteensix‧teen /ˌsɪkˈstiːn◂/ ●●● S3 W3 number HMNthe number 16 sixteen years later He moved to London when he was sixteen (=16 years old). —sixteenth adjective, pronoun her sixteenth birthday the sixteenth century Let’s have dinner on the 16th (=the 16th day of the month).
Examples from the Corpus
the 16th• Let's have dinner on the sixteenth.Origin sixteen Old English sixtiene, from six “six” + tien “ten” 