The temperature outside is in the high thirties. He is in his thirties.
Recent Examples on the WebCrutchfield is in her early thirties, just about old enough to have listened as a kid and a teenager to Apple’s music and to that of similar artists in Apple’s generation, roughly clustered around events such as the early iterations of Lilith Fair. Helena Fitzgerald, refinery29.com, 28 Apr. 2020 In her early thirties, Perkins witnessed the Triangle Shirtwaist Factory fire, which killed 146 garment workers — mostly women and girls. Annalyn Kurtz, CNN, 10 Apr. 2020 On January 1, 1984, a British woman in her early thirties named Tina Brown was appointed editor-in-chief of Newhouse’s reboot of Vanity Fair. Kyle Chayka, The New Republic, 21 Oct. 2019 Her break from Bill is the choice that enables her to become an accomplished and well-connected law professor at Northwestern, politically one to watch in her thirties, and a United States senator by her forties. Laura Marsh, The New Republic, 19 May 2020 Kadolph tried suppressing her childhood memories, but her battle with anorexia continued into her thirties. Cnn.com Wire Service, The Mercury News, 11 July 2019 By her mid-thirties, Gornick identified with the novel’s hero, Paul Morel, who does the desiring. Sophie Pinkham, The New Republic, 1 May 2020 One of those who left the Olive Tree religious movement was a Korean war veteran in his mid-thirties who had spent 10 years worshiping there. Joshua Berlinger, CNN, 6 Mar. 2020 Monteiro is in his mid-thirties, with thick black hair that’s going silver around his ears. Brian Merchant, Harper's magazine, 31 Dec. 2019 See More
Word History
Etymology
Middle English thritty, from thritty, adjective, from Old English thrītig, from thrītig group of 30, from thrīe three + -tig group of ten; akin to Old English tīen ten
First Known Use
before the 12th century, in the meaning defined at sense 1
Time Traveler
The first known use of thirty was before the 12th century