thirty-sixth UK /ˌθɜːti ˈsɪk(s)θ/US /ˌθɚti ˈsɪk(s)θ/adjective 1noun 1forms 1 adjective1 •The ordinal form of the number thirty-six, describing a person or thing in position number 36 of a sequence.The answer appears on the thirty-sixth page of the book.She finished thirty-sixth in the race. noun1 •One of thirty-six equal parts of a whole.A thirty-sixth of 720 is 20. formsthirty-sixths