Similar words: twenty-seven, thirty, thirty-two, thirty-one, thirtyish, thirty-first, this evening, shirty. Meaning: adj. being seven more than thirty.
31. George Gershwin died in nineteen thirty-seven, just days after doctors learned he had brain cancer. He was only thirty-nine years old.
32. Methods Thirty-seven cases with testicular microlithiasis were examined with high resolution two-dimensional ultrasound.
More similar words: twenty-seven, thirty, thirty-two, thirty-one, thirtyish, thirty-first, this evening, shirty, property settlement, seventh heaven, seven, thirties, thirteen, third party, thirtieth, seventy, seventh, thirteenth, sevenfold, mid-thirties, seventeen, seventy-two, seventies, seventy-one, seventieth, seventy-nine, seventy-eight, seven years' war, at sixes and sevens, every third day.