thirty-second UK /ˌθɜːti ˈsɛkənd/US /ˌθɚti ˈsɛkənd/adjective 2noun 1forms 1 adjective2 •The ordinal form of the number thirty-two, describing a person or thing in position number 32 of a sequence.The answer appears on the thirty-second page of the book.She finished thirty-second in the race. •Lasting thirty seconds. noun1 •One of thirty-two equal parts of a whole.A thirty-second of 640 is 20. formsthirty-seconds