thir·teen /ˌɵɚˈtiːn/ noun, pl-teens[count] : the number 13
- thirteenadj • thirteen students
- thirteenpronoun • All thirteen (of them) passed the exam.
- thir·teenth /ˌɵɚˈtiːnɵ/ noun, pl-teenths[count] • the thirteenth of October • one thirteenth of the budget
- thirteenthadj • the thirteenth caller
- thirteenthadv • She finished thirteenth. • the nation's thirteenth largest city